Spain's Rafael Nadal celebrates after defeating Argentina's Juan Martin del Potro at the Olympic Stadium in Seville December 4, 2011. Nadal mounted a thrilling comeback back from a set down to beat Del Potro 1-6 6-4 6-1 7-6 and clinch Spain's fifth Davis Cup tennis title on Sunday. REUTERS/Marcelo del Pozo (SPAIN - Tags: SPORT TENNIS)
Spain's Rafael Nadal celebrates winning against Argentina's Juan Martin Del Potro during the Davis Cup final fourth match at La Cartuja Olympic stadium in Sevilla on December 4, 2011. AFP PHOTO/JAVIER SORIANO
Spain's Rafael Nadal celebrates winning a point against Argentina's Juan Martin Del Potro during the Davis Cup final fourth match at La Cartuja Olympic stadium in Sevilla on December 4, 2011. AFP PHOTO/JAVIER SORIANO