Serena Williams was forced to dig deep to secure a 4-6 6-3 6-2 U.S. Open quarter-final victory over unseeded Bulgarian Tsvetana Pironkova on Wednesday, keeping alive her latest bid for a record-tying 24th Grand Slam singles title.
Serena Williams was forced to dig deep to secure a 4-6 6-3 6-2 U.S. Open quarter-final victory over unseeded Bulgarian Tsvetana Pironkova on Wednesday, keeping alive her latest bid for a record-tying 24th Grand Slam singles title.
