Chile's Universidad Catolica's Lucas Pratto, left, controls the ball as he is challenged by Brazil's Gremio's Rafael Marques during a Copa Libertadores soccer match in Santiago, Chile, Wednesday, May ... more 
Chile's Universidad Catolica's Lucas Pratto, left, controls the ball as he is challenged by Brazil's Gremio's Rafael Marques during a Copa Libertadores soccer match in Santiago, Chile, Wednesday, May 4, 2011. less 
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Associated Press | Photo By Roberto Candia
Wed, May 4, 2011 9:17 PM EDT