Sabine Lisicki moved into the fourth round at Wimbledon as last year's runner-up again showed her liking for the grass in south-west London.

The 19th-seeded German is making up for her slow start to the season and has won three consecutive matches for the first time anywhere this year.

Lisicki was first up on Court One in a match against 11th seed Ana Ivanovic that was carried over from Saturday, when she led the Serbian 6-4 1-1 as darkness fell, and survived a second-set slump to win through 6-4 3-6 6-1.

"It was a good match. She's such a good player and I was ready," Lisicki said.

Next for Lisicki will be Kazakhstan's Yaroslava Shvedova who was expecting to be back on Court 12 on Monday morning to resume her tussle with 19-year-old American Madison Keys.

However Keys retired from the match, in which she trailed 7-6 (9/7) 6-6, because of a thigh injury she was unable to run off in practice.

Former world number one Caroline Wozniacki became the latest big name to crash out of Wimbledon as she fell to Barbora Zahlavova Strycova.

Czech player Zahlavova Strycova (above), ranked 43rd, took her sixth match point to secure a 6-2 7-5 win on Court 12 and earn a place in the quarter-finals.

Having beaten second seed Li Na in the previous round, Zahlavova Strycova started well and claimed the first set in 35 minutes.

Wozniacki, who spent 67 weeks as the world's top-ranked player but has slipped to 16th, then found herself 3-1 down in the second set before breaking back.

Zahlavova Strycova failed to convert two match points against Wozniacki's serve in the 10th game, as her 23-year-old Danish opponent eventually held to level at 5-5.

More match points followed in the 12th game though, and eventually Zahlavova Strycova seized the moment.

Following a double fault, Wozniacki sent a floated backhand just wide from close to the net as Zahlavova Strycova secured another outstanding victory.

Eugenie Bouchard remained on course for a third successive grand slam semi-final as she overcame Alize Cornet on Centre Court at Wimbledon.

The 20-year-old Canadian won 7-6 (7/5) 7-5 under the roof to book her place in the last eight.

Bouchard was pushed all the way by her French opponent, who had knocked out world number one Serena Williams in the third round.

After claiming the first set on a tight tie-break, Bouchard then trailed by a break in the second before digging herself out of trouble to eventually come through in just over one hour and 45 minutes.

In the quarter-finals, Bouchard could face Maria Sharapova, who beat her en route to the title at the French Open, should the 2004 Wimbledon champion overcome German Angelique Kerber in the third match scheduled on Court One.