Kostyuk into Guadalajara last eight without playing a point

Marta Kostyuk has advanced to the quarter-finals of the Guadalajara Open despite never playing a point in the tournament, as she received a first-round bye and a walkover in her second-round match. The top seed, who is currently ranked 10th in the world, will now face Russia's Liudmila Samsonova, who defeated Kayla Day 7-6 (7-4), 2-6, 7-6 (7-5).

Kostyuk has previously won three WTA 1000 titles and reached the semi-finals of the French Open and Wimbledon this year, with her most recent loss coming to sixth seed Linda Noskova in the US Open's last 16.

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