Argentina's team captain Tito Vazquez (L) and Spain's captain Albert Costa talk before the Davis Cup final reverse singles rubber between Spain's Rafael Nadal and Argentina's Juan Martin Del Potro at the Olympic Stadium in Seville December 4, 2011. REUTERS/Marcelo Del Pozo (SPAIN - Tags: SPORT TENNIS)
Spain's King Juan Carlos (C) attends the Davis Cup final reverse singles rubber between Spain's Rafael Nadal and Argentina's Juan Martin Del Potro at the Olympic Stadium in Seville December 4, 2011. REUTERS/Marcelo Del Pozo (SPAIN - Tags: SPORT TENNIS ROYALS ENTERTAINMENT)
Spain's Rafael Nadal (R) and Argentina's Juan Martin Del Potro pose before their Davis Cup final reverse singles rubber at the Olympic Stadium in Seville December 4, 2011. REUTERS/Marcelo Del Pozo (SPAIN - Tags: SPORT TENNIS)