Djokovic scheduled to play on Day 3 at French Open

Andy Murray poses with his trophy after winning the men's final match

Women's fourth seed Garbine Muguruza, a tall Spaniard with a Venezuelan mother, clearly did not appreciate the clammy conditions as she struggled past Slovakia's Anna Karolina Schmiedlova in three sets wearing a long-sleeved top.

Williams, whose bid for a calendar Grand Slam was shattered by Roberta Vinci at previous year s US Open, remains one major title shy of Steffi Graf s Open era record of 22. It took Wawrinka four games to see his first break point of the set. But, the Serb was at his usual best throughout the match from then on.

Muguruza fired 44 winners but hit 53 unforced errors and had to save 17 of 21 break points.

But the schedule already is being shuffled because of showers that created a delay of more than 2 hours in the afternoon and returned to halt all play in the early evening, allowing a total of only 10 out of 32 matches to be completed.

On her run to the title in Melbourne, Kerber had saved a match point in her opening match against Misaki Doi, but there was no great escape this time.

Lucie Safarova of the Czech Republic has closed out a comfortable 6-0, 6-2 win against Vitalia Diatchenko, getting back to the warmth of the locker room just as rain picked up again at the French Open and forced the cancellation of all remaining matches Sunday.

Seeded No. 2 in Paris for the first time, Murray rallied to win from two sets down for the ninth time, and beat Czech qualifier Radek Stepanek 3-6, 3-6, 6-0, 6-3, 7-5. Eighth seed Milos Raonic of Canada beat Janko Tipsarevic of Serbia 6-3, 6-2, 7-6 (5).

Groth, meantime, has lost 15 of 19 matches in 2015; he has never won at ATP Tour level and has never gone further than the first round of Roland Garros.

The second seed had been tormented by the 37-year-old Stepanek the previous evening, being outplayed in the opening two sets, but had repaired some of the damage before play was suspended with him leading 4-2 in the fourth set.

World number one Novak Djokovic will be looking to continue his brilliant form when he takes on Chinese Taipei's Yen-Hsun Lu. "That's the main source of drive and motivation", he said after beginning his 46th consecutive appearance at a grand slam event.

Despite his advancing years, Stepanek came through the qualifying competition and that's a factor which makes Murray wary of the challenge.

"I think I had the music on or something".

While Murray was calmness personified in the Italian capital, the same could not be said for Djokovic.

Gilbert said: "In the last two years, Murray has played phenomenal tennis on clay". But former U.S. Open champion Stosur sealed the deal in the final set 6-3.

However, just four teens are present in the first round of Roland Garros this year with promising German youngster Alexander Zverev the highest-rated of the quartet at 41 in the world.

Radwanska, a quarter-finalist in 2013 but who lost in the first round to Germany's Annika Beck previous year, goes on to face Caroline Garcia of France.

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