Lucas Pratto of Argentina's Velez Sarsfield, top, heads the ball against David Mendoza of Paraguay's Nacional during a Copa Libertadores soccer match in Buenos Aires, Argentina, Tuesday, April 29, ... more 
Lucas Pratto of Argentina's Velez Sarsfield, top, heads the ball against David Mendoza of Paraguay's Nacional during a Copa Libertadores soccer match in Buenos Aires, Argentina, Tuesday, April 29, 2014. (AP Photo/Victor R. Caivano) less 
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Associated Press | Photo By Victor R. Caivano
Tue, Apr 29, 2014 10:03 PM EDT