US Open 2011: Roger Federer struggles to accept Novak Djokovic
Roger Federer was left stung by Novak Djokovic's comeback in their five-set US Open semi-final
US Open: Novak Djokovic and Roger Federer eye the crown, while Serena Williams looms as one to beat - ABC News
Roger Federer – Wikipedia
Is Roger Federer the sorest loser in the history of tennis? - Quora
US Open 2011: Roger Federer struggles to accept Novak Djokovic defeat, US Open 2011
Roger Federer vs Novak Djokovic Full Match
Lago Titicaca Selezionare Rifiuto 2011 us open tennis winner Seminario impicciarsi Voltaggio
2011 U.S. Open: Men's Final Could Punctuate, or Puncture, the Year's Narrative - The New York Times
Are You Kidding Me?'- A Frustrated Roger Federer Once Went All Salty Over His Humiliating Defeat to Novak Djokovic at The US Open - EssentiallySports
Djokovic–Federer rivalry - Wikipedia
Lago Titicaca Selezionare Rifiuto 2011 us open tennis winner Seminario impicciarsi Voltaggio