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Swiss tennis player Roger Federer poses by a street sign reading his name near the Gerry Weber Stadium in the city of Halle western Germany on June 11, 2012 where the Halle ATP open started today. Federer has won the tournament five times. AFP PHOTO / CARMEN JASPERSEN (Photo credit should read CARMEN JASPERSEN/AFP/GettyImages)

Swiss tennis player Roger Federer poses by a street sign reading his name near the Gerry Weber Stadium in the city of Halle western Germany on June 11, 2012 where the Halle ATP open started today. Federer has won the tournament five times.  AFP PHOTO / CARMEN JASPERSEN        (Photo credit should read CARMEN JASPERSEN/AFP/GettyImages)

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Swiss tennis player Roger Federer gives a press conference at the Gerry Weber Stadium in the city of Halle, western Germany, on June 11, 2012 where the Halle ATP open started today. Federer has won the tournament five times. AFP PHOTO / CARMEN JASPERSEN (Photo credit should read CARMEN JASPERSEN/AFP/GettyImages)

Swiss tennis player Roger Federer gives a press conference at the Gerry Weber Stadium in the city of Halle, western Germany, on June 11, 2012 where the Halle ATP open started today. Federer has won the tournament five times.  AFP PHOTO / CARMEN JASPERSEN        (Photo credit should read CARMEN JASPERSEN/AFP/GettyImages)

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HALLE, GERMANY - JUNE 17: (L-R) Runner-up Roger Federer (L) of Switzerland, torunament director Ralf Weber and winner Tommy Haas of Germany pose for photographers after the final match during day seven of the Gerry Weber Open at Gerry Weber Stadium on June 17, 2012 in Halle, Germany. (Photo by Thomas Starke/Bongarts/Getty Images)

HALLE, GERMANY - JUNE 17: (L-R) Runner-up Roger Federer (L) of Switzerland, torunament director Ralf Weber and winner Tommy Haas of Germany pose for photographers after the final match during day seven of the Gerry Weber Open at Gerry Weber Stadium on June 17, 2012 in Halle, Germany.  (Photo by Thomas Starke/Bongarts/Getty Images)

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HALLE, GERMANY - JUNE 16: Roger Federer of Switzerland plays a backhand during his semi-final match against Mikhail Youzhny of Russia during day six of the Gerry Weber Open at Gerry Weber Stadium on June 16, 2012 in Halle, Germany. (Photo by Thomas Starke/Bongarts/Getty Images)

HALLE, GERMANY - JUNE 16:  Roger Federer of Switzerland  plays a backhand during his semi-final match against Mikhail Youzhny of Russia during day six of the Gerry Weber Open at Gerry Weber Stadium on June 16, 2012 in Halle, Germany.  (Photo by Thomas Starke/Bongarts/Getty Images)

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Swiss tennis player Roger Federer gives a press conference at the Gerry Weber Stadium in the city of Halle, western Germany, on June 11, 2012 where the Halle ATP open started today. Federer has won the tournament five times. AFP PHOTO / CARMEN JASPERSEN (Photo credit should read CARMEN JASPERSEN/AFP/GettyImages)

Swiss tennis player Roger Federer gives a press conference at the Gerry Weber Stadium in the city of Halle, western Germany, on June 11, 2012 where the Halle ATP open started today. Federer has won the tournament five times.  AFP PHOTO / CARMEN JASPERSEN        (Photo credit should read CARMEN JASPERSEN/AFP/GettyImages)