Bacsinszky downs Stosur in second round of Sydney International
Bacsinszky, ranked 23, beat the former finalist 5-7, 6-4, 6-3 and reached her first quarterfinal.
Bacsinszky, ranked 23, beat the former finalist 5-7, 6-4, 6-3 and reached her first quarterfinal.
Williams said she was still driven to succeed.