NEW YORK - AUGUST 28: James Blake attends a charity event benefiting the Thomas Blake, Sr. Memorial Cancer Research Fund at Las Chicas...

Rafael Nadal of Spain hits a backhand return against James Blake of the US during their second round match at the ATP Masters tennis tournament in Shanghai...

James Blake of the USA gestures to the crowd after his 6-1, 6-4, 7-5 victory...

James Blake of the US (21) against Olivier Rochus of Belgium during their 2nd round US Open match...

NEW YORK - AUGUST 31: James Blake of the United States lines up a shot against Ruben Ramirez Hidalgo of Spain during day...

1- May 10, 2009; Lisbon, PORTUGAL; Nikolay Davydenko (RUS) returns a shot against James Blake (USA), not pictured, during the semifinals of the Estoril Open at Complexo Desportivo do Jamor. 2...

James Blake of the US team reacts while playing with Ivo Karlovic of Croatian team during Davis Cup...

Croatian Davis Cup tennis player Marin Cilic celebrates after defeating US James Blake (not pictured) during their quarterfinal Davis Cup match between Croatia and USA in northern Croatian Adriatic...

...coach Patrick McEnroe looks on during the Davis Cup match between Croatian Marin Cilic and US James Blake in the Croatian adriatic resort of Porec, some 250 kilometers from Zagreb, on June 12, 2009...

WIMBLEDON, ENGLAND - JUNE 22: James Blake of USA reacts during the men's singles first round match against Andreas Seppi of Italy...

WIMBLEDON, ENGLAND - JUNE 22: James Blake of USA reacts during the men's singles first round match against Andreas Seppi of Italy...

James Blake of U.S. reacts while playing Andreas Seppi of Italy in their first round tennis match...

...13: Andy Roddick of USA plays a backhand during the men's semi final match against James Blake of USA during Day 6 of the the AEGON Championship at Queens Club on June 13...

Albert Montanes of Spain reacts during his ATP Estoril Open tennis tournament final against James Blake of the US at Jamor Stadium on the outskirts of Lisbon, on May 10, 2009. Montanes...

MADRID, SPAIN - MAY 14: Roger Federer of Switzerland serves against James Blake of the USA in their third round match during the Madrid Open tennis tournament at the...