Demonstrators hold flags during a rally in support of ethnic Serbs who are protesting against Pristina government actions in northern Kosovo, in Belgrade, Serbia, December 12, 2022. REUTERS/Marko Djurica 

Demonstrators light flares during a rally in support of ethnic Serbs who are protesting against Pristina government actions in northern Kosovo, in Belgrade, Serbia, December 12, 2022. REUTERS/Marko Djurica 

A demonstrator waves a flag during a rally in support of ethnic Serbs who are protesting against Pristina government actions in northern Kosovo, in Belgrade, Serbia, December 12, 2022. REUTERS/Marko Djurica 

Demonstrators shout slogans during a rally in support of ethnic Serbs who are protesting against Pristina government actions in northern Kosovo, in Belgrade, Serbia, December 12, 2022. REUTERS/Marko Djurica 

Demonstrators light flares during a rally in support of ethnic Serbs who are protesting against Pristina government actions in northern Kosovo, in Belgrade, Serbia, December 12, 2022. REUTERS/Marko Djurica 

Demonstrators light flares during a rally in support of ethnic Serbs who are protesting against Pristina government actions in northern Kosovo, in Belgrade, Serbia, December 12, 2022. REUTERS/Marko Djurica 

Demonstrators shout slogans during a rally in support of ethnic Serbs who are protesting against Pristina government actions in northern Kosovo, in Belgrade, Serbia, December 12, 2022. REUTERS/Marko Djurica 

Demonstrators light flares during a rally in support of ethnic Serbs who are protesting against Pristina government actions in northern Kosovo, in Belgrade, Serbia, December 12, 2022. REUTERS/Marko Djurica 

Demonstrators burn a Kosovo flag during a rally in support of ethnic Serbs who are protesting against Pristina government actions in northern Kosovo, in Belgrade, Serbia, December 12, 2022. REUTERS/Marko Djurica 

Demonstrators light flares during a rally in support to ethnic Serbs who are protesting against Pristina government actions in northern Kosovo, in Belgrade, Serbia, December 12, 2022. REUTERS/Marko Djurica 

People attend a protest against pollution and for cleaner air in Belgrade, Serbia, November 13, 2022. REUTERS/Zorana Jevtic 

People attend a protest against pollution and for cleaner air in Belgrade, Serbia, November 13, 2022. REUTERS/Zorana Jevtic 

People attend a protest against pollution and for cleaner air in Belgrade, Serbia, November 13, 2022. REUTERS/Zorana Jevtic 

People attend a protest against pollution and for cleaner air in Belgrade, Serbia, November 13, 2022. REUTERS/Zorana Jevtic 

People attend a protest against pollution and for cleaner air in Belgrade, Serbia, November 13, 2022. REUTERS/Zorana Jevtic 

People attend a protest against pollution and for cleaner air in Belgrade, Serbia, November 13, 2022. REUTERS/Zorana Jevtic 

People attend a protest against pollution and for cleaner air in Belgrade, Serbia, November 13, 2022. REUTERS/Zorana Jevtic 

People attend a protest against pollution and for cleaner air in Belgrade, Serbia, November 13, 2022. REUTERS/Zorana Jevtic 

People attend a protest against pollution and for cleaner air in Belgrade, Serbia, November 13, 2022. REUTERS/Zorana Jevtic 

Soccer Football - Europa Conference League - Group D - Partizan Belgrade v 1. FC Slovacko - Partizan Stadium, Belgrade, Serbia - November 3, 2022 1. FC Slovacko's Filip Nguyen in action REUTERS/Marko Djurica 

Soccer Football - Europa Conference League - Group D - Partizan Belgrade v 1. FC Slovacko - Partizan Stadium, Belgrade, Serbia - November 3, 2022 Fans with flares REUTERS/Marko Djurica 

Soccer Football - Europa Conference League - Group D - Partizan Belgrade v 1. FC Slovacko - Partizan Stadium, Belgrade, Serbia - November 3, 2022 1. FC Slovacko's Michal Tomic celebrates scoring their first goal with teammates REUTERS/Marko Djurica 

Soccer Football - Europa Conference League - Group D - Partizan Belgrade v 1. FC Slovacko - Partizan Stadium, Belgrade, Serbia - November 3, 2022 1. FC Slovacko's Michal Tomic celebrates scoring their first goal with teammates REUTERS/Marko Djurica 

Soccer Football - Europa Conference League - Group D - Partizan Belgrade v 1. FC Slovacko - Partizan Stadium, Belgrade, Serbia - November 3, 2022 Partizan Belgrade's Fousseyni Diabate in action with 1. FC Slovacko's Jan Kalabiska REUTERS/Marko Djurica 

Soccer Football - Europa Conference League - Group D - Partizan Belgrade v 1. FC Slovacko - Partizan Stadium, Belgrade, Serbia - November 3, 2022 Partizan Belgrade's Ricardo Gomes in action with 1. FC Slovacko's Patrik Simko REUTERS/Marko Djurica 

Soccer Football - Europa Conference League - Group D - Partizan Belgrade v 1. FC Slovacko - Partizan Stadium, Belgrade, Serbia - November 3, 2022 Partizan Belgrade's Bibras Natcho celebrates scoring their first goal with teammates REUTERS/Marko Djurica 

Soccer Football - Europa Conference League - Group D - Partizan Belgrade v 1. FC Slovacko - Partizan Stadium, Belgrade, Serbia - November 3, 2022 Partizan Belgrade's Bibras Natcho celebrates scoring their first goal with Slobodan Urosevic REUTERS/Marko Djurica 

Soccer Football - Europa Conference League - Group D - Partizan Belgrade v 1. FC Slovacko - Partizan Stadium, Belgrade, Serbia - November 3, 2022 Partizan Belgrade's Bibras Natcho scores their first goal from the penalty spot REUTERS/Marko Djurica 

Soccer Football - Europa Conference League - Group D - Partizan Belgrade v 1. FC Slovacko - Partizan Stadium, Belgrade, Serbia - November 3, 2022 1. FC Slovacko coach Martin Svedik REUTERS/Marko Djurica 

Soccer Football - Europa Conference League - Group D - Partizan Belgrade v 1. FC Slovacko - Partizan Stadium, Belgrade, Serbia - November 3, 2022 1. FC Slovacko coach Martin Svedik REUTERS/Marko Djurica 

Soccer Football - Europa Conference League - Group D - Partizan Belgrade v 1. FC Slovacko - Partizan Stadium, Belgrade, Serbia - November 3, 2022 1. FC Slovacko's Vlastimil Danicek in action with Partizan Belgrade's Bibras Natcho REUTERS/Marko Djurica 

Soccer Football - Europa Conference League - Group D - Partizan Belgrade v 1. FC Slovacko - Partizan Stadium, Belgrade, Serbia - November 3, 2022 Partizan Belgrade coach Gordan Petric REUTERS/Marko Djurica 

Soccer Football - Europa Conference League - Group D - Partizan Belgrade v 1. FC Slovacko - Partizan Stadium, Belgrade, Serbia - November 3, 2022 Partizan Belgrade's Ricardo Gomes in action with 1. FC Slovacko's Daniel Holzer REUTERS/Marko Djurica 

Soccer Football - Europa Conference League - Group D - Partizan Belgrade v 1. FC Slovacko - Partizan Stadium, Belgrade, Serbia - November 3, 2022 Partizan Belgrade's Hamidou Traore in action with 1. FC Slovacko's Filip Vecheta REUTERS/Marko Djurica 

Soccer Football - Europa Conference League - Group D - Partizan Belgrade v 1. FC Slovacko - Partizan Stadium, Belgrade, Serbia - November 3, 2022 Partizan Belgrade players huddle before the match REUTERS/Marko Djurica 

Soccer Football - Europa Conference League - Group D - Partizan Belgrade v 1. FC Slovacko - Partizan Stadium, Belgrade, Serbia - November 3, 2022 Partizan Belgrade players huddle before the match REUTERS/Marko Djurica 

Soccer Football - Europa Conference League - Group D - Partizan Belgrade v 1. FC Slovacko - Partizan Stadium, Belgrade, Serbia - November 3, 2022 1. FC Slovacko's Filip Vecheta with teammates during the warm up before the match REUTERS/Marko Djurica 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 Red Star Belgrade's Aleksandar Pesic celebrates scoring their second goal with teammates REUTERS/Marko Djurica 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 Red Star Belgrade players celebrate in a huddle after the match REUTERS/Marko Djurica 

Soccer Football - Europa Conference League - Group D - OGC Nice v Partizan Belgrade - Allianz Riviera, Nice, France - October 27, 2022 Partizan Belgrade's Ricardo Gomes celebrates scoring their first goal with Nikola Terzic REUTERS/Eric Gaillard 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 Trabzonspor's Jean-Philippe Gbamin looks dejected after Red Star Belgrade's Aleksandar Pesic scores their second goal REUTERS/Marko Djurica 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 Red Star Belgrade's Aleksandar Pesic celebrates scoring their second goal with teammates REUTERS/Marko Djurica 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 Red Star Belgrade's Aleksandar Pesic celebrates scoring their second goal with Nemanja Milunovic and Mirko Ivanic REUTERS/Marko Djurica 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 General view of Trabzonspor fans with flares in the stands REUTERS/Marko Djurica 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 Trabzonspor's Marek Hamsik shoots at goal REUTERS/Marko Djurica 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 Red Star Belgrade's Milan Borjan makes a save from Trabzonspor's Marek Hamsik REUTERS/Marko Djurica 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 Trabzonspor's Ugurcan Cakir concedes their first goal scored by Red Star Belgrade's Aleksandar Katai REUTERS/Marko Djurica 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 Trabzonspor's Anastasios Bakasetas celebrates scoring their first goal with teammates REUTERS/Marko Djurica 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 Trabzonspor players celebrate their first goal scored by Anastasios Bakasetas REUTERS/Marko Djurica 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 Red Star Belgrade's Aleksandar Katai celebrates scoring their first goal with Guelor Kanga REUTERS/Marko Djurica 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 Red Star Belgrade's Aleksandar Katai celebrates scoring their first goal with teammates REUTERS/Marko Djurica 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 Red Star Belgrade's Aleksandar Katai in action REUTERS/Marko Djurica 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 Trabzonspor coach Abdullah Avci gives instructions to Evren Eren Elmaci REUTERS/Marko Djurica 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 Trabzonspor's Enis Bardhi in action with Red Star Belgrade's Strahinja Erakovic REUTERS/Marko Djurica 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 Red Star Belgrade's Aleksandar Pesic in action with Trabzonspor's Jean-Philippe Gbamin REUTERS/Marko Djurica 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 Red Star Belgrade's Aleksandar Pesic in action with Trabzonspor's Jean-Philippe Gbamin REUTERS/Marko Djurica 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 General view of fans in the stands with flares before the match REUTERS/Marko Djurica 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 General view of fans in the stands with flares before the match REUTERS/Marko Djurica 

Soccer Football - Europa Conference League - Group D - OGC Nice v Partizan Belgrade - Allianz Riviera, Nice, France - October 27, 2022 OGC Nice players celebrate with fans after the match REUTERS/Eric Gaillard 

Soccer Football - Europa League - Group H - Red Star Belgrade v Trabzonspor - Rajko Mitic Stadium, Belgrade, Serbia - October 27, 2022 Trabzonspor's Umut Bozok during the warm up before the match REUTERS/Marko Djurica