Federer, Wawrinka reaches US Open quarterfinals; Anderson upsets Murray

US Open 2015—New York, U.S.A

Fourth-round results:

Stan Wawrinka (SUI) [5] d. Donald Young (USA) 64 16 63 64
Roger Federer (SUI) [2] d. John Isner (USA) [13] 76(0) 76(6) 75
Kevin Anderson (RSA) [15] d. Andy Murray (GBR) [3] 76(5) 63 67(2) 76(0)
Richard Gasquet (FRA) [12] d. Tomas Berdych (CZE) [6] 26 63 64 61