Juan Martin del Potro says he won't play in Argentina's Davis Cup playoff tie in September due to his differences with the Argentine Tennis Association.
Argentina, who have reached four finals - including three since 2006 - must play off against as yet unknown opponents to retain their world group status having been upset by Italy in the first round in Mar del Plata two weeks ago.
World number five Del Potro, who doesn't see eye-to-eye with team captain Martin Jaite, says it's necessary to make deep changes to correct mistakes that have been repeated for so many years.
Del Potro, Olympic bronze medal winner at the 2012 London Games, has been unhappy with attitudes towards him from some corners of the AAT and media since being made a scapegoat for Argentina's unexpected defeat in the 2008 final at home to a Spain team missing Rafael Nadal.
The 2009 US Open champion dislikes the soccer-type support from sections of the crowd at home matches who question players' commitment to the team if they put their careers on the ATP circuit first, failing to accept their prerogative to do so.