The Latest on the French Open (all times local):

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6:35 p.m.

Cagla Buyukakcay has become the first woman from Turkey to win a main-draw match at a Grand Slam tournament.

The 83rd-ranked Buyukakcay, who got into the French Open via qualifying, beat 98th-ranked Aliaksandra Sasnovich of Belarus 5-7, 7-6 (2), 6-2 on Monday in a first-round match carried over from the night before when rain interrupted play.

Buyukakcay and Ipek Soylu, who also qualified at Roland Garros, are the first Turkish women to participate in the main draw at any major tennis tournament.

Soylu will face French wild-card entry Virginie Razzano in the first round.

Last month, the 26-year-old Buyukakcay became the first woman from her country to win a WTA title, earning the trophy at a clay-court tournament in Istanbul.

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4:45 p.m.

Stan Wawrinka narrowly avoided becoming the first defending champion to lose in the first round of the French Open, coming back to edge 59th-ranked Lukas Rosol of the Czech Republic 4-6, 6-1, 3-6, 6-3, 6-4 on Monday.

The third-seeded Wawrinka was out of sorts for most of the match on a gray, chilly afternoon, winding up with 46 unforced errors, 17 on his preferred backhand wing.

But after trailing 2-1 in sets, Wawrinka took the last two to win what shaped up beforehand as a mismatch in his favor.

Wawrinka is a two-time Grand Slam title winner, while Rosol never has been past the third round at a major tournament.

Plus, Wawrinka had won all four previous matches between the two, including Friday on red clay at Geneva.

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4:20 p.m.

Fourth-seeded Garbine Muguruza has recovered after losing the first set and advanced to the second round of the French Open.

The two-time quarterfinalist from Spain struggled early but rallied to beat Anna Karolina Schmiedlova 3-6, 6-3, 6-3.

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4:10 p.m.

Stan Wawrinka has pushed Lukas Rosol to a fifth set at the French Open.

Wawrinka is trying to avoid becoming the first defending champion to lose in the tournament's first round.

Rosol led 2-1 in sets, but Wawrinka evened the match by taking the fourth 6-3. Wawrinka had converted only two of 11 break points before using his signature backhand for a cross-court passing winner to go up 5-3 in the fourth, then held serve.

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3:30 p.m.

Stan Wawrinka is one set away from becoming the first defending French Open champion to lose in the first round.

The third-seeded Swiss player, struggling for range and rhythm, is losing to Lukas Rosol 6-4, 1-6, 6-3.

Rosol was broken twice in the second set, but he changed his shirt during the break and came out strong for the third set. He took a 3-0 lead and had a breakpoint for 4-0 that he failed to convert.

He served out the set when Wawrinka shanked a backhand.

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2:20 p.m.

Defending champion Stan Wawrinka has made a less than ideal start at the French Open, losing the first set of his first match 6-4 to Lukas Rosol of the Czech Republic.

Rosol broke the third-seeded Swiss player in the fifth game with a drop shot that died on the rain-dampened red clay of Court Philippe Chatrier.

Wawrinka has won all four previous matchups against Rosol, including last week on clay en route to taking the title in Geneva.

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1:45 p.m.

After a delay of more than 2½ hours, play has finally started at the French Open.

Wearing a fluorescent yellow shirt and shoes, defending champion Stan Wawrinka is up against Lukas Rosol on Court Philippe Chatrier.

Last year, Wawrinka's pink-checkered shorts were a major topic of conversation at Roland Garros, so much so that the Swiss player draped them over the table in front of him during his final news conference. He has opted for a pair of black shorts this year.

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1:00 p.m.

The rain at the French Open has eased and the grounds crew at Roland Garros is now sweeping water off the court covers.

Play has been delayed by two hours but matches could be starting soon.

Unlike at Wimbledon and the Australian Open, there is no roof over the center court at the clay-court Grand Slam. A retractable roof is expected to be delivered by 2018.

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12:25 p.m.

It is still raining in Paris and French Open organizers have announced there will be no play at least before 1 p.m.

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11:00 a.m.

Poor weather is playing havoc with the French Open schedule for the second consecutive day.

Showers over Paris on Monday have forced the organizers to delay the start of play by 1½ hours after only 10 out of 32 matches were completed on Day 1.

Tuesday's forecast is grim but a break in the weather could allow matches to go ahead early in the afternoon.

Defending champion Stan Wawrinka is set to play Lukas Rosol on Court Philippe Chatrier, while Andy Murray will open his campaign at the clay-court Grand Slam tournament against Radek Stepanek, who qualified for the main draw at the age of 37.

In the women's draw, second-seeded Agnieszka Radwanska is up against 120th-ranked Bojana Jovanovski.