Stan Wawrinka advances to French Open quarterfinals

Stan Wawrinka was so in control during his 7-6 (5), 6-7 (7), 6-3, 6-2 win against Viktor Troicki for a place in the French Open quarterfinals that the defending champion even had time to hit shots with a ball boy.

While his Serb opponent, seeded No. 22, was getting treatment to his right leg in the third set, Wawrinka lent the lucky ball-lad a racket and kept himself and the crowd amused by hitting with him.

But against a tricky Troicki, the third-seeded Swiss was strictly business in cold and humid conditions on Court Philippe Chatrier.

Wawrinka needed eight set points to overcome Troicki in the first set, failing to capitalize on the first four when Troicki was serving at 5-6 and then seeing three more go to waste in the tiebreaker before getting the set lead in 49 minutes.

In the second tiebreaker, it was Troicki who needed five set points to break down Wawrinka, who hit an attempted forehand lob long for the Serb to level.

Wawrinka caressed a backhand winner to break in the fourth game of the third set, during which Troicki got treatment on his leg and was given pills.

In the fourth set, Wawrinka staved off a breakpoint with a sublime cross-court backhand and took a 5-1 lead. An ace brought up two match points for Wawrinka just shy of the three-hour mark and he converted the first when Troicki netted a backhand from the baseline.

Milos Raonic is out of the French Open, the eighth-seeded Canadian losing 6-2, 6-4, 6-4 to Albert Ramos-Vinolas in the fourth round in front of new coach John McEnroe.

The 55th-ranked player from Spain is into the quarterfinals of a major for the first time, having never made it past the second round of 18 previous Grand Slam tournaments.

Cool and very cloudy weather appeared to take some bite out of Raonic's serve. The quarterfinalist at Roland Garros in 2014 and semifinalist at this year's Australian Open also complained of an aching left hip in his previous match.

Ramos-Vinolas earned the victory with aggressive shot-making and some terrific defensive play. He broke Raonic five times and only lost serve once himself, saving 6 of 7 break points.

"I have no words to explain how I feel," he said. "It was four years in a row losing in the first round."

Raonic beckoned over the chair umpire in the last game to inspect a shot that gave Ramos-Vinolas two match points. She ruled it in, pointing out that the ball had nicked the line.

The Spaniard couldn't capitalize on either of those match points. But he made no mistake with his third match point, earned with an ace served out wide, sealing the win in 2 hours and 20 minutes with a smash.

He celebrated by firing a spare ball into the air in delight.