LONDON- Canadian 20-year-old Eugenie Bouchard succeeded where Serena Williams failed as she beat Alize Cornet to reach the quarter-finals on another rain-hit day at Wimbledon on Monday.

Frenchwoman Cornet caused a sensation on Saturday by removing five-times champion and pre-tournament favorite Williams, but the fresh-faced Bouchard proved to be made of sterner stuff as she edged to a 7-6(5) 7-5 victory.

"That's cool. I didn't know that," Bouchard said of becoming the first Canadian to reach the Wimbledon quarter-finals. "Another little historic thing for Canada."

The match was interrupted after five games to allow the Center Court roof to close when more rain hit the championships after Saturday's lengthy disruption.

The second Monday is traditionally a feast of top names, with the last 16 in both men's and women's singles being played, but organizers were playing catch-up this year with several third-round matches still to be completed.

Swiss Stanislas Wawrinka, one of the victims of soggy Saturday when his match against Uzbekistan's Denis Istomin was canceled, made up for lost time with a rapid 6-3 6-3 6-4 win completed just before a heavy rain shower arrived.

The Australian Open champion was facing three matches in three days and though he wasted little excess energy against the bespectacled Istomin, he did grumble about the schedulers.

"They just say what's going to be the schedule and that's it," Wawrinka said of the decision not to play his third-round match when the rain stopped on Saturday.

"Even if you want to talk to them, they're not going to change anything. They don't listen to the player. They just do what they think is good for them."

Japan's Kei Nishikori, the 10th seed, needed only four games to complete a 3-6 6-3 4-6 7-6(4) 6-4 third-round victory over Simone Bolelli after their match had been suspended because of bad light at the weekend.

Spain's Feliciano Lopez also belatedly reached the last 16, beating big-serving American John Isner in a four-set match that predictably included three tiebreaks.

Isner's defeat left the United States without a representative in the last 16 of the men's or women's singles for the first time since 1911.

Earlier in the day teenager Madison Keys had been forced to withdraw with a leg injury before resuming her third-round match against Kazakhstan's Yaroslava Shvedova.

They were locked at 6-6 in the second set when darkness fell on Saturday, with Shvedova having won the opener.

Shvedova will play last year's runner-up Sabine Lisicki in the fourth round after the German claimed a stop-go 6-4 3-6 6-1 victory over 11th seed Ana Ivanovic.

GRIT AND POWER

The defeat of Williams blew a large hole in the women's draw and Canada's Bouchard exploited it with a performance of grit and power against 25th seed Cornet.

Having reached the semi-finals at both the Australian Open and French Open this year, Bouchard arrived at Wimbledon with the likes of former men's champion John McEnroe tipping her as his dark horse for the women's title.

She looked like she would be stretched into a third set when she trailed 5-3 in the second, but she continued going for her shots with abandon to claw back the deficit.

Serving at 5-6, Cornet tried in vain to hold off the Canadian trailblazer, rescuing one point after a nasty tumble, but finally succumbed when she fired a backhand long.

"I think the main thing is the confidence I've kind of added since the beginning of the year," Bouchard told reporters.

"I've proved to myself I can play on the big stage as well. I've played on center courts of most of the slams; big moments, big matches. I'm proud of the way I can handle it."

Bouchard could face a repeat of her French Open semi-final in the quarter-finals if Roland Garros champion Maria Sharapova beats Angelique Kerber later on Monday, though further heavy rain was threatening to intervene again.

Croatia's 26th seed Marin Cilic took advantage of a drier interlude to beat Frenchman Jeremy Chardy 7-6(8) 6-4 6-4.

He will play the winner of the day's stand-out match between world No.1 Novak Djokovic and charismatic Frenchman Jo-Wilfried Tsonga.

Defending champion Andy Murray was in action against giant South African Kevin Anderson, having reached the last 16 with the loss of only 19 games.