Del Potro stuns Federer in four sets to make semi-finals

US OpenVenue: Flushing Meadows, New York Dates: 28 Aug-10 SeptBBC coverage: Live radio and text commentary on selected matches every day.Argentina's Juan Martin del Potro stunned Roger Federer in four sets to reach the US Open semi-finals.The 24th seed won 7-5 3-6 7-6 (10-8) 6-4 to reach the last four,

Watt sets new goal for flood relief fund at $20 million

Texans defensive end J.J. Watt has already raised $ 15 million for flood victims in Houston caused by Hurricane Harvey, but he isn't content just yet.The four-time First-Team All Pro has set the new goal for the online fundraiser at $ 20 million, per ESPN.Watt isn't waiting around

Federer beats Youzhny in five sets to reach third round

US OpenVenue: Flushing Meadows, New York Dates: 28 Aug-10 SeptBBC coverage: Live radio and text commentary on selected matches every day.Roger Federer was taken to five sets for the second time in three days before overcoming Russia's Mikhail Youzhny at the US Open.The five-time champion was two sets to one