Kvitova withdraws from French Open with arm injury

France's Gael Monfils reacts during his third round match against Switzerland's Roger Federer. Susana Vera Reuters

"I had some good weeks where I felt great, and then I've had some weeks where I've been sick and some weeks where I've been injured", Wozniacki said. It looks great and attractive, so congratulations to everyone involved.

"I'm very happy to be back, maybe a tiny bit more because when I have missed the last three editions, and when you miss something in life, you're happy to be back there again".

Roger Federer entered a refurbished Court Philippe Chatrier for his first French Open match since 2015, greeted by the sun peeking through the clouds and the full-throated support of spectators in their designer sunglasses, straw hats and sweaters tied over their shoulders. I know when Wimbledon comes around, I'll be probably a higher favourite.

But the 23-time Grand Slam champion quickly changed the momentum by winning the opening three games of the second set.

Russia's world number 81 Anastasia Potapova of Russian Federation shocked fifth seed Angelique Kerber of Germany in the first round of the French Open.

"I had a lot of confidence and I have to thank my coach for that", said 81st-ranked Potapova who hit 28 winners past her German opponent.

Sixth seed Petra Kvitova is out of the French Open.

Kerber, who would have reclaimed the world number one ranking by lifting the Suzanne Lenglen Cup on June 8, did not really believe in her own chances.

Kerber came into the French Open nursing a right ankle injury she suffered at the Madrid Open.

Angelique Kerber's quest to complete a career Grand Slam this year was squashed during the first round of the French Open at the racket of an 18-year-old making her debut.

It forms part of the 350 million euro upgrade of the entire site which will also see the demolition of the Court 1 "bullring" after the 2018 tournament.

Spain's Garbine Muguruza, the 2016 champ and former No. 1, meanwhile rallied to beat 96th-ranked Taylor Townsend, 5-7, 6-2, 6-2, on what she named the "cute" new Simonne Mathieu court. which is enclosed by greenhouses.

"It's cute", said the Spaniard. You know, I had no time to lose from the first point.

"I'm disappointed to have to announce my withdrawal from Roland Garros", she Tweeted on Monday, just hours before she was due to take to the court to face Sorana Cirstea in a first-round match.

The Spaniard carved out a 5-7 6-2 6-2 win in the semi-sunken 5,000-seater arena, which has been constructed with a slick combination of glass and metal.