Nadal has won 20 of his 21 Davis Cup matches since making his competition debut in 2004 . Rafael González and David Wagner tell reporters they will not play in the 2012 Davis Cup . Nadal says he is having a year 's break to concentrate on grand slams and Olympics . Ferrer confirms he is retiring from Davis Cup duty after five years playing for Spain .
Rafael González and David Wagner tell reporters they will not play in the 2012 Davis Cup . Nadal says he is having a year 's break to concentrate on grand slams and Olympics . Ferrer confirms he is retiring from Davis Cup duty after five years playing for Spain .