World No. 1 Aryna Sabalenka advanced to the semifinals of the US Open on Tuesday without having to play a point, after her quarterfinal opponent, Marketa Vondrousova, withdrew due to a knee injury.
US Open 2025: World No. 1 Aryna Sabalenka will face former Wimbledon champion Marketa Vondrousova in the quarterfinals. Vondrousova outclassed ninth seed Elena Rybakina in the fourth round on Sunday.