Joao Alves de Assis, center, of Brazil's Atletico Mineiro reacts after missing a shot on goal against Mexico's Club Tijuana Xoloitzcuintles during the first half of their Copa Libertadores quarterfinal soccer match Thursday, May 23, 2013, in Tijuana, Mexico. (AP Photo/Gregory Bull)
Joao Alves de Assis, center, of Brazil's Atletico Mineiro reacts after missing a shot on goal against Mexico's Club Tijuana Xoloitzcuintles during the first half of their Copa Libertadores quarterfinal soccer match Thursday, May 23, 2013, in Tijuana, Mexico. (AP Photo/Gregory Bull)