associated press photographs
12th-seeded Jo-Wilfried Tsonga celebrates after defeating Roger Federer. Tsonga will Novak Djokovic, who is 46-1 this season, in the semifinals Friday.

associated press photographs 12th-seeded Jo-Wilfried Tsonga celebrates after defeating Roger Federer. Tsonga will Novak Djokovic, who is 46-1 this season, in the semifinals Friday.