Serena Williams was forced to dig deep to secure a 4-6 6-3 6-2 US Open quarterfinal victory over unseeded Bulgarian Tsvetana Pironkova on Wednesday, keeping alive her latest bid for a record-tying 24th Grand Slam singles title.
Williams, a six-time champion in New York, struggled with Pironkova’s slice forehand early and was at risk of her earliest US Open exit in 14 years until she used her experience to find a way back.
For Pironkova, who dropped to 0-5 in career head-to-head meetings with Williams, the loss marked the end of a surprise New York run given this was her first professional tournament since Wimbledon in 2017.
