Krupoviesa of Argentina's Boca Juniors and Aguilar of Paraguay's Guarani battle for the ball during their...
Juan Krupoviesa (L) of Argentina's Boca Juniors and Juan Aguilar of Paraguay's Guarani battle for the ball during their Copa Libertadores soccer match in Buenos Aires April 9, 2009. REUTERS/Enrique Marcarian (ARGENTINA SPORT SOCCER)