Shanghai - Andy Roddick withdrew from the Masters Cup shortly before his match on Wednesday, citing an ankle injury he suffered during training the day before.
The American, who lost his opening match to Andy Murray, will be replaced in the Red group by Radek Stepanek.
The American dropped his bombshell a few hours before he was due to take to the court against Roger Federer.
Washington, Nov 5 : Tennis player Andy Roddick has backtracked on a deal to give tennis lesson in the buff after a woman bid 11,200 dollars for the chance at a charity auction.
The offer from Roddick was auctioned off at one of Sir Elton John''s AIDS Foundation fundraisers earlier this year (08).
However, Roddick has backtracked over the naked training, insisting it was just a joke.
Winston-Salem, North Carolina - Confident Andy Roddick will be seeking revenge for a five-set Wimbledon loss against Richard Gasquet as France travel to the American Deep South for a Davis Cup Wo