Champions never talk, they just perform and the world talks.

PARIS, FRANCE - JUNE 05:  Roger Federer of Switzerland celebrates in his men's singles quarter final match against Juan Martin Del Potro of Argentina during day 10 of the French Open at Roland Garros on June 5, 2012 in Paris, France.  (Photo by Mike Hewitt/Getty Images)

PARIS, FRANCE – JUNE 05: Roger Federer of Switzerland celebrates in his men’s singles quarter final match against Juan Martin Del Potro of Argentina during day 10 of the French Open at Roland Garros on June 5, 2012 in Paris, France. (Photo by Mike Hewitt/Getty Images)