Federer and Wawrinka advance in Cincinnati
Switzerland's Roger Federer and Stan Wawrinka both made the Cincinnati Masters tennis tournament quarterfinals on Thursday while world number one Novak Djokovic got knocked out.
Serbia's Djokovic, this year's Wimbledon champion, suffered a shock 7-6 (8/6), 7-5 loss to Spain's Tommy Robredo.
Second-seeded Federer, a five-time Cincinnati champion, held off Frenchman Gael Monfils 6-4, 4-6, 6-3.
The Basel native booked a tough quarterfinal against eighth-seeded Scot Andy Murray, who battled more than two hours against the huge serve of John Isner, finally dispatching the American 6-7 (3/7), 6-4, 7-6 (7/2).
Federer had a rare show of temper late in the match, arguing with the chair umpire over a decision not to call on electronic line-calling on a particular point.
But Federer quickly recovered his poise, clinching the match with a service winner after breaking Monfils in the penultimate game.
Wawrinka, meanwhile, came from behind with a 3-6, 6-0, 6-1 win over Croatia's Marin Cilic.
The third-seeded Australian Open champion goes on to tackle France's Julien Benneteau, who put out Poland's Jerzy Janowicz 7-5, 6-1, for a place in the semifinals.