Argentine club River Plate's soccer player Nicolas Bertolo attends a training session ahead of their Club World Cup final soccer match against Barcelona in Yokohama, south of Tokyo, Japan, December 18, 2015. REUTERS/Yuya Shino 

Nicolas Bertolo (R) of Argentina's River Plate challenges Jose Madrid of Ecuador's LDU de Quito during their Copa Sudamericana soccer match in Buenos Aires, September 23, 2015. REUTERS/Agustin Marcarian 

Lucas Alario (C) of Argentina's River Plate celebrates with teammate Nicolas Bertolo after he scored a goal against Mexico's Tigres during their second leg of their Copa Libertadores final soccer match at Monumental stadium in Buenos Aires August 5, 2015. REUTERS/Martin Acosta 

SS Lazio's Miroslav Klose (R) celebrates after scoring as Palermo's Nicolas Bertolo watches during their Italian Serie A soccer match at the Olympic stadium in Rome September 2, 2012. REUTERS/Giampiero Sposito (ITALY - Tags: SPORT SOCCER) 

SS Lazio's Abdoulay Konko (L) challenges Palermo's Nicolas Bertolo for the ball during their Italian Serie A soccer match at the Olympic stadium in Rome September 2, 2012. REUTERS/Giampiero Sposito (ITALY - Tags: SPORT SOCCER) 

Inter Milan's Joel Obi (L) challenges Nicolas Bertolo of Palermo during their Italian Serie A soccer match at Giuseppe Meazza stadium in Milan, February 1, 2012. REUTERS/Stefano Rellandini ( ITALY - Tags: SPORT SOCCER) 

Palermo's Andrea Mantovani (R) celebrates with his teammate Nicolas Bertolo after scoring against Inter Milan during their Italian Serie A soccer match at the Giuseppe Meazza stadium in Milan February 1, 2012. REUTERS/Stefano Rellandini (ITALY - Tags: SPORT SOCCER) 

Tigre's Martin Morel (R) dribbles the ball under pressure from Banfield's Nicolas Bertolo during their Argentine first division soccer match in Buenos Aires December 14, 2008. REUTERS/Santiago Pandolfi(ARGENTINA) 

Luisinho (L) of Brazil's Flamengo fights for the ball with Nicolas Bertolo (C) of Uruguay's Nacional as his team mate Renato Augusto looks on during their Copa Libertadores soccer match at the Maracana stadium in Rio de Janeiro March 19, 2008. REUTERS/Bruno Domingos (BRAZIL) 

Libertad's Cristian Riveros (R) battles for the ball with Boca Juniors' Nicolas Bertolo in their first leg soccer match of the Libertadores Cup quarterfinals in Buenos Aires May 17, 2007. REUTERS/Enrique Marcarian (ARGENTINA) 

Boca Juniors' Nicolas Bertolo (L) and Newell's Old Boys' Adrian Peralta fight for the ball during their Argentine First Division soccer match in Buenos Aires October 15, 2006. REUTERS/Marcos Brindicci (ARGENTINA)