Virulaso, 60, a former soccer hooligan and a fan of Boca Juniors, wears the team's t-shirt and cap as he sits inside his home in the La Boca neighbourhood, ahead of the second leg of the final of the Copa Libertadores between local rivals Boca Juniors and River Plate in Buenos Aires, Argentina, November 14, 2018. REUTERS/Nacho Doce SEARCH "BRINDICCI DOCE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Russian fan leader Sergei Gorbachev poses for a photo during an interview in the city of Tula, south of Moscow, Russia May 26, 2018. REUTERS/Gabrielle Tetrault-Farber 

Russian fan leader Sergei Gorbachev poses for a photo during an interview in the city of Tula, south of Moscow, Russia May 26, 2018. REUTERS/Gabrielle Tetrault-Farber 

A demonstrator passes by burning tires during clashes with Israeli troops at a protest where Palestinians demand the right to return to their homeland, at the Israel-Gaza border, in the southern Gaza Strip, April 13, 2018. REUTERS/Ibraheem Abu Mustafa 

A Palestinian protesters runs during clashes with Israeli troops at the Israel-Gaza border, east of Gaza City April 4, 2018. REUTERS/Mohammed Salem 

German police officers pose for an image with their armband reading "Police Germany" at the North Rhine-Westphalian police headquarters in Duisburg, Germany, June 6, 2016. Germany is sending a total of 12 police officers from eight different German federal states who know the local soccer hooligans scene to support French police during the upcoming EURO 2016 soccer championships in France. REUTERS/Wolfgang Rattay 

German police officers pose for an image with their armband reading "Police Germany" at the North Rhine-Westphalian police headquarters in Duisburg, Germany, June 6, 2016. Germany is sending 12 police officers from eight different German federal states who know the local soccer hooligans scene to support French police during the upcoming EURO 2016 soccer championships in France. REUTERS/Wolfgang Rattay 

A German police officer poses for an image with his armband reading "Police Germany" at the North Rhine-Westphalian police headquarters in Duisburg, Germany, June 6, 2016. Germany is sending a total of 12 police officers from eight different German federal states who know the local soccer hooligans scene to support French police during the upcoming EURO 2016 soccer championships in France. REUTERS/Wolfgang Rattay 

Members of German far-right groups attend a demonstration in Cologne, Germany October 25, 2015. Neo-Nazi groups, members of Germany's football hooligan scene and HoGeSa (hooligans against Salafists) were organising what they said was a demonstration against Islamic extremism. REUTERS/Wolfgang Rattay

Members of German far-right groups attend a demonstration in Cologne, Germany October 25, 2015. Neo-Nazi groups, members of Germany's football hooligan scene and HoGeSa (hooligans against Salafists) were organising what they said was a demonstration against Islamic extremism. REUTERS/Wolfgang Rattay

A member of a German far-right movement sings during a demonstration in Cologne, Germany October 25, 2015. Neo-Nazi groups, members of Germany's football hooligan scene and HoGeSa (hooligans against Salafists) were organising what they said was a demonstration against Islamic extremism. REUTERS/Wolfgang Rattay

Hannes Ostendorf of the far-right band "Kategorie C" (Category C) sings during a demonstration in Cologne, Germany October 25, 2015. Neo-Nazi groups, members of Germany's football hooligan scene and HoGeSa (hooligans against Salafists) were organising what they said was a demonstration against Islamic extremism. The text on the hoodie reads "That's our life". REUTERS/Wolfgang Rattay

Hannes Ostendorf of the far-right band "Kategorie C" (Category C) sings during a demonstration in Cologne, Germany October 25, 2015. Neo-Nazi groups, members of Germany's football hooligan scene and HoGeSa (hooligans against Salafists) were organising what they said was a demonstration against Islamic extremism. REUTERS/Wolfgang Rattay

Members of German far-right groups shout slogans during a demonstration in Cologne, Germany October 25, 2015. Neo-Nazi groups, members of Germany's football hooligan scene and HoGeSa (hooligans against Salafists) were organising what they said was a demonstration against Islamic extremism. REUTERS/Wolfgang Rattay

Members of German HoGeSa (hooligans against Salafists) movement attend a demonstration in Cologne, Germany October 25, 2015. Neo-Nazi groups, members of Germany's football hooligan scene and HoGeSa were organising what they said was a demonstration against Islamic extremism. REUTERS/Wolfgang Rattay

Members of German far-right groups shout slogans during a demonstration in Cologne, Germany October 25, 2015. Neo-Nazi groups, members of Germany's football hooligan scene and HoGeSa (hooligans against Salafists) were organising what they said was a demonstration against Islamic extremism. REUTERS/Wolfgang Rattay

Members of German far-right groups shout slogans during a demonstration in Cologne, Germany October 25, 2015. Neo-Nazi groups, members of Germany's football hooligan scene and HoGeSa (hooligans against Salafists) were organising what they said was a demonstration against Islamic extremism. REUTERS/Wolfgang Rattay

A right-wing protester receives medical treatment after he got injured during a demonstration in Cologne, Germany October 25, 2015. Neo-Nazi groups, members of Germany's football hooligan scene and HoGeSa (hooligans against Salafists) were organising what they said was a demonstration against Islamic extremism. REUTERS/Wolfgang Rattay

A right-wing protester reacts after he was injured during a demonstration in Cologne, Germany October 25, 2015. Neo-Nazi groups, members of Germany's football hooligan scene and HoGeSa (hooligans against Salafists) were organising what they said was a demonstration against Islamic extremism. REUTERS/Wolfgang Rattay

A right-wing protester reacts after he was injured during a demonstration in Cologne, Germany October 25, 2015. Neo-Nazi groups, members of Germany's football hooligan scene and HoGeSa (hooligans against Salafists) were organising what they said was a demonstration against Islamic extremism. REUTERS/Wolfgang Rattay

German riot police officers make a cordon to seal off left-wing and far-right protesters during a demonstration in Cologne October 25, 2015. Neo-Nazi groups, members of Germany's football hooligan scene and HoGeSa (hooligans against Salafists) were organising what they said was a demonstration against Islamic extremism. REUTERS/Wolfgang Rattay

German riot police officers make a cordon to seal off left-wing and far-right protesters during a demonstration in Cologne October 25, 2015. Neo-Nazi groups, members of Germany's football hooligan scene and HoGeSa (hooligans against Salafists) were organising what they said was a demonstration against Islamic extremism. REUTERS/Wolfgang Rattay

Feyenoord fans clash with police at the Spanish Steps prior to the start of the Europa League soccer match between Roma and Feyenoord in Rome, February 19, 2015. Twenty-two Feyenoord fans have been arrested and eight charged after trouble flared before the Dutch side's Europa League clash with AS Roma later on Thursday, Italian police said. Hundreds of Feyenoord fans clashed with riot police at the Spanish Steps just before the game. REUTERS/Yara Nardi (ITALY - Tags: SPORT SOCCER CIVIL UNREST CRIME LAW TPX IMAGES OF THE DAY) 

Soccer fans of Peru's Alianza Lima scuffle among themselves before their Copa Libertadores soccer match against Argentina's Huracan in Buenos Aires February 10, 2015. REUTERS/Agustin Marcarian (ARGENTINA - Tags: SPORT SOCCER CIVIL UNREST) 

Hannes Ostendorf lead singer of the far-right band "Kategorie C'"(Category C) walks past a police car during a demonstration organized by German far-right groups in Cologne. The demonstration against Islamic extremism was organized by neo-Nazi groups and members of Germany's football hooligan scene. Picture taken October 26, 2014. REUTERS/Wolfgang Rattay (GERMANY - Tags: CIVIL UNREST CRIME LAW POLITICS)

Hooligans and neo-Nazis carry a banner of the far-right band "Kategorie C'" (Category C) in front of a demonstration organized by German far-right groups in Cologne. The demonstration against Islamic extremism was organized by neo-Nazi groups and members of Germany's football hooligan scene. Picture taken October 26, 2014. REUTERS/Wolfgang Rattay (GERMANY - Tags: CIVIL UNREST CRIME LAW POLITICS)

Hooligans and neo-Nazis carry a banner of the far-right band "Kategorie C'" (Category C) in front of a demonstration organized by German far-right groups in Cologne. The demonstration against Islamic extremism was organized by neo-Nazi groups and members of Germany's football hooligan scene. Picture taken October 26, 2014. REUTERS/Wolfgang Rattay (GERMANY - Tags: CIVIL UNREST CRIME LAW POLITICS)

Hannes Ostendorf lead singer of the far-right band "Kategorie C'"(Category C) walks past a police car during a demonstration organized by German far-right groups in Cologne. The demonstration against Islamic extremism was organized by neo-Nazi groups and members of Germany's football hooligan scene. Picture taken October 26, 2014. REUTERS/Wolfgang Rattay (GERMANY - Tags: CIVIL UNREST CRIME LAW POLITICS)

Hannes Ostendorf of the far-right band "Kategorie C'"(Category C) sings at a demonstration organized by German far-right groups in Cologne. The demonstration against Islamic extremism was organized by neo-Nazi groups and members of Germany's football hooligan scene. Picture taken October 26, 2014. REUTERS/Wolfgang Rattay (GERMANY - Tags: CIVIL UNREST CRIME LAW POLITICS)

German riot police officers stand in front of an overturned police van during a demonstration by German far-right groups in Cologne October 26, 2014. The demonstration against Islamic extremism was organized by neo-Nazi groups and members of Germany's football hooligan scene. REUTERS/Wolfgang Rattay (GERMANY - Tags: CIVIL UNREST POLITICS) 

Protesters gather as police use a water cannon against them during a demonstration organized by German far-right groups in Cologne October 26, 2014. The demonstration against Islamic extremism was organized by neo-Nazi groups and members of Germany's football hooligan scene. REUTERS/Wolfgang Rattay (GERMANY - Tags: CIVIL UNREST POLITICS) 

Protesters gesture towards members of the media as they march through the streets of Cologne during a demonstration by German far-right groups, October 26, 2014. The demonstration against Islamic extremism was organized by neo-Nazi groups and members of Germany's football hooligan scene. REUTERS/Wolfgang Rattay (GERMANY - Tags: CIVIL UNREST POLITICS) 

A protestor runs away as a German riot policeman holds a dog during a demonstration by German far-right groups in Cologne October 26, 2014. The demonstration against Islamic extremism was organized by neo-Nazi groups and members of Germany's football hooligan scene. REUTERS/Wolfgang Rattay (GERMANY - Tags: CIVIL UNREST POLITICS) 

Protestors walk through a park during a demonstration by German far-right groups in Cologne October 26, 2014. The demonstration against Islamic extremism was organized by neo-Nazi groups and members of Germany's football hooligan scene. REUTERS/Wolfgang Rattay (GERMANY - Tags: CIVIL UNREST POLITICS) 

A protester gestures towards police using a water cannon against them during a demonstration organized by German far-right groups in Cologne October 26, 2014. The demonstration against Islamic extremism was organized by neo-Nazi groups and members of Germany's football hooligan scene. REUTERS/Wolfgang Rattay (GERMANY - Tags: CIVIL UNREST POLITICS) 

German riot police stand next to a smoke bomb used against them by protesters during a demonstration by German far-right groups in Cologne October 26, 2014. The demonstration against Islamic extremism was organized by neo-Nazi groups and members of Germany's football hooligan scene. REUTERS/Wolfgang Rattay (GERMANY - Tags: CIVIL UNREST POLITICS) 

A protester takes cover behind a pillar as police use a water cannon against them during a demonstration organized by German far-right groups in Cologne October 26, 2014. The demonstration against Islamic extremism was organized by neo-Nazi groups and members of Germany's football hooligan scene. REUTERS/Wolfgang Rattay (GERMANY - Tags: CIVIL UNREST CRIME LAW POLITICS) 

A protester gestures towards police using a water cannon against them during a demonstration organized by German far-right groups in Cologne October 26, 2014. The demonstration against Islamic extremism was organized by neo-Nazi groups and members of Germany's football hooligan scene. REUTERS/Wolfgang Rattay (GERMANY - Tags: CIVIL UNREST CRIME LAW POLITICS) 

German riot police officers use torches to look for their personal belongings in an overturned police van following a demonstration by German far-right groups in Cologne October 26, 2014. The demonstration against Islamic extremism was organized by neo-Nazi groups and members of Germany's football hooligan scene. REUTERS/Wolfgang Rattay (GERMANY - Tags: CIVIL UNREST POLITICS) 

Protesters gesture towards police using a water cannon against them during a demonstration organized by German far-right groups in Cologne October 26, 2014. The demonstration against Islamic extremism was organized by neo-Nazi groups and members of Germany's football hooligan scene. REUTERS/Wolfgang Rattay (GERMANY - Tags: CIVIL UNREST CRIME LAW POLITICS) 

Protesters gesture towards police using a water cannon against them during a demonstration organized by German far-right groups in Cologne October 26, 2014. The demonstration against Islamic extremism was organized by neo-Nazi groups and members of Germany's football hooligan scene. REUTERS/Wolfgang Rattay (GERMANY - Tags: CIVIL UNREST CRIME LAW POLITICS) 

Olympiakos' and Panathinaikos' players walk amidst smoke from flares lit up by fans before their Greek Super League soccer match at Karaiskaki stadium in Piraeus, near Athens, October 26, 2014. REUTERS/Alkis Konstantinidis (GREECE - Tags: SPORT SOCCER TPX IMAGES OF THE DAY) 

A man poses for a photo next to an overturned police van during a demonstration by 'hooligans against Salafists and Islamic State extremist' in Cologne October 26, 2014. REUTERS/Wolfgang Rattay (GERMANY - Tags: CIVIL UNREST TPX IMAGES OF THE DAY)

A man throws a bicycle during a demonstration by 'hooligans against Salafists and Islamic State extremist' in Cologne October 26, 2014. REUTERS/Wolfgang Rattay (GERMANY - Tags: CIVIL UNREST)

Fans of Egypt's Al-Ahly, known as "Ultras", flee after riot police fired tear gas during clashes after their African Super Cup soccer match against Tunisia's CS Sfaxien at Cairo Stadium February 20, 2014. Al-Ahly won the African Super Cup title. REUTERS/Amr Abdallah Dalsh (EGYPT - Tags: SPORT SOCCER CIVIL UNREST) 

Some Juventus and Hellas Verona's supporters clash during their Italian Serie A soccer match at Bentegodi Stadium in Verona February 9, 2014. REUTERS/Giorgio Perottino (ITALY - Tags: SPORT SOCCER TPX IMAGES OF THE DAY) 

A fan is detained by a riot Gendarme in front of the Eiffel Tower after clashes between fans and police as several thousand supporters celebrated with Paris Saint-Germain soccer players who received the French Championship trophy in Paris May 13, 2013. Paris St Germain's Ligue 1 title celebrations were cut short on Monday after clashes between spectators and police in the west of the French capital. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT SOCCER CIVIL UNREST)

Millwall fans fight with police officers during their FA Cup semi-final soccer match against Wigan Athletic at Wembley Stadium in London, April 13, 2013. REUTERS/Darren Staples (BRITAIN - Tags: SPORT SOCCER) 

Millwall fans fight with police officers during their FA Cup semi-final soccer match against Wigan Athletic at Wembley Stadium in London, April 13, 2013. REUTERS/Darren Staples (BRITAIN - Tags: SPORT SOCCER TPX IMAGES OF THE DAY) 

Montenegro fans fight amongst themselves before the team's 2014 World Cup qualifying soccer match against England at the City Stadium in Podgorica March 26, 2013. REUTERS/Eddie Keogh (MONTENEGRO - Tags: SPORT SOCCER) 

Members of Special Police Force from the city of Zenica participate during an anti soccer hooligan exercise with people role-playing as demonstrators in Nemila, March 18, 2013. The local police organized a final exercise in preparation against soccer hooliganism for the upcoming World Cup qualifier soccer match between Greece and Bosnia on March 22. According to local media, local police are anticipating violence which may arise among Serbian supporters, who support the Greek team, and Bosnian fans. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: CIVIL UNREST CRIME LAW SOCIETY SPORT SOCCER) 

Members of Special Police Force from the city of Zenica take up positions during an anti soccer hooligan exercise with people role-playing as demonstrators in Nemila, March 18, 2013. The local police organized a final exercise in preparation against soccer hooliganism for the upcoming World Cup qualifier soccer match between Greece and Bosnia on March 22. According to local media, local police are anticipating violence which may arise among Serbian supporters, who support the Greek team, and Bosnian fans. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: SOCIETY SPORT SOCCER CRIME LAW) 

Members of Special Police Force from the city of Zenica remove equipment after an anti soccer hooligan exercise with people role-playing as demonstrators in Nemila, March 18, 2013. The local police organized a final exercise in preparation against soccer hooliganism for the upcoming World Cup qualifier soccer match between Greece and Bosnia on March 22. According to local media, local police are anticipating violence which may arise among Serbian supporters, who support the Greek team, and Bosnian fans. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: SPORT SOCCER CRIME LAW CIVIL UNREST SOCIETY) 

Members of Special Police Force from the city of Zenica remove equipment after an anti soccer hooligan exercise with people role-playing as demonstrators in Nemila, March 18, 2013. The local police organized a final exercise in preparation against soccer hooliganism for the upcoming World Cup qualifier soccer match between Greece and Bosnia on March 22. According to local media, local police are anticipating violence which may arise among Serbian supporters, who support the Greek team, and Bosnian fans. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: SPORT SOCCER CRIME LAW CIVIL UNREST SOCIETY) 

Members of Special Police Force from the city of Zenica take up positions during an anti soccer hooligan exercise with people role-playing as demonstrators in Nemila, March 18, 2013. The local police organized a final exercise in preparation against soccer hooliganism for the upcoming World Cup qualifier soccer match between Greece and Bosnia on March 22. According to local media, local police are anticipating violence which may arise among Serbian supporters, who support the Greek team, and Bosnian fans. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: SOCIETY SPORT SOCCER CRIME LAW) 

Members of Special Police Force from the city of Zenica participate during an anti soccer hooligan exercise with people role-playing as demonstrators in Nemila, March 18, 2013. The local police organized a final exercise in preparation against soccer hooliganism for the upcoming World Cup qualifier soccer match between Greece and Bosnia on March 22. According to local media, local police are anticipating violence which may arise among Serbian supporters, who support the Greek team, and Bosnian fans. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: CIVIL UNREST CRIME LAW SOCIETY SPORT SOCCER) 

Members of Special Police Force from the city of Zenica participate during an anti soccer hooligan exercise with people role-playing as demonstrators in Nemila, March 18, 2013. The local police organized a final exercise in preparation against soccer hooliganism for the upcoming World Cup qualifier soccer match between Greece and Bosnia on March 22. According to local media, local police are anticipating violence which may arise among Serbian supporters, who support the Greek team, and Bosnian fans. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: CIVIL UNREST CRIME LAW SOCIETY SPORT SOCCER) 

Members of Special Police Force from the city of Zenica take up positions during an anti soccer hooligan exercise with people role-playing as demonstrators in Nemila, March 18, 2013. The local police organized a final exercise in preparation against soccer hooliganism for the upcoming World Cup qualifier soccer match between Greece and Bosnia on March 22. According to local media, local police are anticipating violence which may arise among Serbian supporters, who support the Greek team, and Bosnian fans. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: SOCIETY SPORT SOCCER CRIME LAW) 

Members of Special Police Force from the city of Zenica participate during an anti soccer hooligan exercise with people role-playing as demonstrators in Nemila, March 18, 2013. The local police organized a final exercise in preparation against soccer hooliganism for the upcoming World Cup qualifier soccer match between Greece and Bosnia on March 22. According to local media, local police are anticipating violence which may arise among Serbian supporters, who support the Greek team, and Bosnian fans. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: SPORT SOCCER CRIME LAW SOCIETY)