Del Potro of Argentina reacts after winning his Davis Cup World Group match against Stepanek of Czech Republic in Buenos Aires

 
Del Potro of Argentina reacts after winning his Davis Cup World Group match against Stepanek of Czech Republic in Buenos Aires
Juan Martin Del Potro of Argentina reacts after winning his Davis Cup World Group match against Radek Stepanek of Czech Republic in Buenos Aires September 14, 2012. REUTERS/Enrique Marcarian