Serbian tennis player Novak Djokovic loses a point against Switzerland’s Stanislas Wawrinka during their 2013 US Open men’s semifinals match at the USTA Billie Jean King National Tennis Center in New York on September 7, 2013. AFP PHOTO/Emmanuel Dunand (Photo credit should read EMMANUEL DUNAND/AFP/Getty Images)
TEN-US-OPEN-DJOKOVIC-WAWRINKA
