Venus Williamsreturns to Ana Konjuh during their match on Monday. Photo: AP Photo/Kirsty Wigglesworth

LONDON - Five-time champion Venus Williams became the oldest All England Club quarter-finalist in 23 years on Monday.

Granted showcourt billing, Williams didn't hang around as she crushed 19-year-old Croatian Ana Konjuh 6-3, 6-2 in 64 minutes on Centre Court.

Williams made her Grand Slam debut at the 1997 French Open, seven months before Konjuh was born.

And at 37 years and 29 days, Venus is Wimbledon's oldest female quarter-finalist since Martina Navratilova in 1994.

Seven-time major winner Venus, who clinched the last of her Wimbledon titles in 2008, will hope to emulate Navratilova, who went on to reach the final 23 years ago.

Williams plays French Open champion Jelena Ostapenko for a place in the semi-finals.

Ostapenko advanced to her first Wimbledon quarter-final after finally converting her eighth match point to defeat Elina Svitolina 6-3, 7-6 (8/6).

Latvian 13th seed Ostapenko, the 2014 junior Wimbledon champion, squandered seven match points in the second set before eventually seeing off the Ukrainian world number five to make just her second last eight appearance at a major.

The 20-year-old's triumph in Paris last month made her only the third player born in the 1990s to win a Grand Slam.

Kuznetsova reached her first Wimbledon quarter-final in 10 years with a 6-2, 6-4 win over Polish ninth seed Agnieszka Radwanska.

Kuznetsova, a former US and French Open champion, crushed 37 winners in her 14th victory in 18 meetings with Radwanska.

The 32-year-old has never made it to the Wimbledon semi-finals and last reached that stage at a Grand Slam in the 2009 French Open.

Slovakia's Magdalena Rybarikova is into her maiden Grand Slam quarter-final after a 6-4, 2-6, 6-3 win over Croatian qualifier Petra Martic.

Rybarikova, 28, had failed to make the last eight in all 35 of her previous Grand Slam appearances, losing in the Wimbledon first round for seven successive years between 2008 and 2014.

Next up for the world number 87, who has 17 wins from 18 grass-court matches this year, is a clash with either former world number one Caroline Wozniacki or American 24th seed Coco Vandeweghe.

Later on Monday, Britain's Johanna Konta, the bookmakers' favourite for the title, faces world number seven takes on France's Caroline Garcia.

Konta is aiming to become the first British women into the Wimbledon quarter-finals since Jo Durie in 1984.

Virginia Wade was the last Briton to win the women's crown in 1977.

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