Jelena Ostapenko celebrates after beating Elina Svitolina on Monday. Photo: AP Photo/Alastair Grant

LONDON - Jelena Ostapenko advanced to her first Wimbledon quarter-final as the French Open champion finally converted her eighth match point to defeat Elina Svitolina 6-3, 7-6 (8/6) on Monday.

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, whose triumph in Paris last month made her only the third player born in the 1990s to win a Grand Slam, faces five-time Wimbledon winner Venus Williams or Croatian teenager Ana Konjuh for a place in the semi-finals.

Meanwhile, unseeded Magdalena Rybarikova reached her first Wimbledon quarter-final with a 6-4, 2-6, 6-3 win over Croatian qualifier Petra Martic.

The world number 87 from Slovakia will face either former world number one Caroline Wozniacki or Coco Vandeweghe of the United States for a place in the semi-finals.

Seventh-seeded Russian Svetlana 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 victory, which gave her a last-eight clash against either top seed Angelique Kerber or Garbine Muguruza.

Angelique Kerber crashed out of Wimbledon and lost her hold on the world number one ranking as the German was beaten 4-6, 6-4, 6-4 by Spain's Garbine Muguruza on Monday.

Kerber's fourth round exit extended a miserable run for last year's Wimbledon runner-up, who has failed to make the last eight at any of this year's three majors.

Kerber, the 2016 Wimbledon runner-up, will be replaced at number one by either Karolina Pliskova or Simona Halep.

Muguruza, the 2015 finalist, goes onto play Kuznetsova for a place in the last four.

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