NEW YORK - Two-time Australian Open champion Victoria Azarenka advanced to the US Open quarter-finals yesterday, beating Serbian 13th seed Ana Ivanovic 4-6 6-3 6-4 in a match postponed from Tuesday due to rain.
The 24-year-old second seed from Belarus took advantage of Ivanovic's 42 unforced errors and broke the former world No.1 nine times in the match, winning despite surrendering seven breaks herself and hitting just 21 winners.
Ivanovic had fired 15 forehand winners before Azarenka managed her first.
Azarenka, who lost to Serena Williams in last year's final, will play for a semi-final spot against Slovakian Daniela Hantuchova, with whom she has split four career meetings.
Azarenka, a semi-finalist in five of the past seven grand slams, defeated world No.1 Williams in the final at Cincinnati in the last big US Open tune-up event to become the main threat to dethrone Williams.
Williams, a 16-time grand slam winner, and Chinese fifth seed Li Na, the 2011 French Open champion, will try to reach the semi-finals in later matches at Arthur Ashe Stadium.