Australian Open—Melbourne, Australia
Fourth-round results:
Mischa Zverev Defeats (1) Andy Murray 75 57 62 64
(4) Stan Wawrinka Defeats Andreas Seppi 76(2) 76(4) 76(4)
(17) Roger Federer Defeats (5) Kei Nishikori 67(4) 64 61 46 63
(12) Jo-Wilfried Tsonga Defeats Daniel Evans 67(4) 62 64 64
