BUENOS AIRES, ARGENTINA - APRIL 07:  Tennis players Ivo Karlovic and Marin Cilic of Croatia (L) and Eduardo Schwank and David Nalbandian of Argentina pose before the match between Argentina and Croatia for the quarterfinals of the Davis Cup at Mary Teran de Weiss stadium on April 07, 2012 in Buenos Aires, Argentina. (Photo by Charly Diaz Azcue/LatinContent via Getty Images)