Ivanovic beats Pironkova to reach US Open quarters

More than four years after her French Open title, Ana Ivanovic is finally back in a Grand Slam quarterfinal.

The 12th-seeded Serb beat Tsvetana Pironkova 6-0, 6-4 on Monday in the fourth round of the U.S. Open. Ranked No. 1 in the world in 2008, Ivanovic has struggled with injuries and her confidence since.

After failing to serve out the match at 5-3 in the second set, Ivanovic broke the 55th-ranked Bulgarian at love in the next game to clinch the victory.

Pironkova, a 2010 Wimbledon semifinalist, went up a break twice in the second set only for Ivanovic to immediately break back. There were seven service breaks in 10 games in the set.

Ivanovic could next face Serena Williams, who plays 82nd-ranked Andrea Hlavackova later Monday.

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