French Open: Caroline Wozniacki beaten by Daria Kasatkina in last 16

Kasatkina, a former French Open junior champion, is through to her first Grand Slam quarter-final

Australian Open champion and second seed Caroline Wozniacki is out of the French Open, beaten 7-6 (7-5) 6-3 by Daria Kasatkina in the last 16.

Russia's Kasatkina, 21, raced away with the last three games of a match that had been halted at 3-3 in the second set on Sunday because of bad light.

The 14th seed will face American 10th seed Sloane Stephens in the last eight.

World number one Simona Halep, runner-up in 2014 and 2017, beat 16th seed Elise Mertens of Belgium 6-2 6-1.

Angelique Kerber, the 12th-seeded German, will meet Halep in the last eight after overcoming home favourite and seventh seed Caroline Garcia 6-2 6-3.

Former champion Serena Williams withdrew before her match against Russia's Maria Sharapova because of injury.

Two-time winner Sharapova will take on third seed Garbine Muguruza in the quarter-finals after the Spaniard's opponent Lesia Tsurenkoof the Ukraine retired after just two games with a leg injury.

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No excuses from outplayed Wozniacki

Before Monday, Kasatkina had never before got beyond the fourth round at a Grand Slam and had fallen in the third round on her only two previous visits to Roland Garros.

But she went into her match with Wozniacki with form on her side having defeated the Dane twice already in 2018 in St Petersburg and Indian Wells where she went onto reach her first significant final.

Wozniacki's wait to make a real impression in Paris goes on despite arriving with high hopes and dropping only 11 games in her first three rounds.

The Dane had been unhappy at being made to continue the night before after both players called for a stoppage at 1-1 in the deciding set even though the light appeared adequate.

There were no excuses, though, from the 27-year-old, who has yet to make it past the quarter-final stage at Roland Garros.

"I honestly didn't think I played badly this morning," said Wozniacki. "She didn't miss one ball, and she was playing very close to the lines. I was trying, but it just wasn't enough today."

Winner Kasatkina was asked if she would stick around at Roland Garros to watch the other matches - she said that solving accommodation issues were her priority.

"My house which I rent expired today, and I'll have to move to a hotel," said the 14th seed. "This is the problem.

"I booked it through Airbnb. So you have to pay in advance.

"You never know what is going to happen at the French Open. If you reach the middle of the second week then it's fine to move into a hotel. I'm not complaining."

Halep bids to embrace nervous energy

Halep only needed 22 minutes to take the second set and clinch victory

The 26-year-old Romanian started slowly but once she found her form, there was nothing Mertens could do to avoid a one-sided defeat.

Halep broke her opponent's serve six times as she won in 59 minutes.

"I don't know how the other players are but I think I am very nervous before every match," said Halep.

"So I'm not going to fight with myself about that. But I try to improve this thing, and I try to enjoy my nerves, because they are special when you play in a Grand Slam."