Stan Wawrinka of Switzerland hits a return to Roger Federer of Switzerland during their Semifinals round match on the twelfth day of the 2015 US Open Tennis Championship at the USTA National Tennis Center in Flushing Meadows, New York, USA, 11 September 2015. The US Open runs through 13 September, which is a return to a 14-day schedule. EPA/ANDREW GOMBERT
Roger Federer of Switzerland serves to Stan Wawrinka of Switzerland during their Semifinals round match on the twelfth day of the 2015 US Open Tennis Championship at the USTA National Tennis Center in Flushing Meadows, New York, USA, 11 September 2015. The US Open runs through 13 September, which is a return to a 14-day schedule. EPA/RAY STUBBLEBINE
Stan Wawrinka of Switzerland hits a return to Roger Federer of Switzerland during their Semifinals round match on the twelfth day of the 2015 US Open Tennis Championship at the USTA National Tennis Center in Flushing Meadows, New York, USA, 11 September 2015. The US Open runs through 13 September, which is a return to a 14-day schedule. EPA/JASON SZENES
Roger Federer of Switzerland hits a return to Stan Wawrinka of Switzerland during their Semifinals round match on the twelfth day of the 2015 US Open Tennis Championship at the USTA National Tennis Center in Flushing Meadows, New York, USA, 11 September 2015. The US Open runs through 13 September, which is a return to a 14-day schedule. EPA/JOHN G. MABANGLO
Stan Wawrinka of Switzerland hits a return to Roger Federer of Switzerland during their Semifinals round match on the twelfth day of the 2015 US Open Tennis Championship at the USTA National Tennis Center in Flushing Meadows, New York, USA, 11 September 2015. The US Open runs through 13 September, which is a return to a 14-day schedule. EPA/RAY STUBBLEBINE
Roger Federer of Switzerland hits a return to Stan Wawrinka of Switzerland during their Semifinals round match on the twelfth day of the 2015 US Open Tennis Championship at the USTA National Tennis Center in Flushing Meadows, New York, USA, 11 September 2015. The US Open runs through 13 September, which is a return to a 14-day schedule. EPA/JASON SZENES
Topics: 10sballs_com, 2015 US Open, Atp World Tour, Flushing Meadows, Roger Federer, Sports, Stan Wawrinka, Tennis, US Open semi-finals
-@rogerfederer TO FACE @DjokerNole AT MEN’S #USOpen FINAL, PHOTO GALLERY FROM HIS MATCH AGAINST @stanwawrinka- http://t.co/nHp4F48Cze #ATP