Wawrinka, Murray on semifinal collision course

Perennial Grand Slam title contenders Stan Wawrinka and Andy Murray were joined in the French Open quarter-finals by two unfamiliar faces on Sunday as the Parisian clay continued to turn up unexpected plot lines.

It was no surprise to see Swiss titleholder Wawrinka beat Viktor Troicki, although it took a while for the third seed to subdue the Serb 7-6 (5), 6-7 (7), 6-3, 6-2.

Murray's 7-6 (9), 6-4, 6-3 defeat of John Isner was entirely predictable, even if the second seed had to save three set points in the opener before extending his career record over the towering American to 6-0 in clinical fashion.