Marta Kostyuk advances to Guadalajara quarter-finals without playing a point

Marta Kostyuk has reached the quarter-finals of the Guadalajara Open without having played a match yet. She received a first-round bye and progressed when Taylor Townsend withdrew from their scheduled second-round encounter due to illness. As the world number 10, Kostyuk's next match will be against eighth-seeded Liudmila Samsonova, who recently defeated Kayla Day in a three-set match. Kostyuk previously won her first WTA 1000 title in Madrid and has had strong performances this season, including semi-final appearances at the French Open and Wimbledon.

• 6:48 AMYahoo Sports — Kostyuk into Guadalajara last eight without playing a point
• 6:48 AMBBC Sport — Kostyuk into Guadalajara last eight without playing a point