Former world No. 1 Ana Ivanovic upset another former top-ranked player on Tuesday night at Indian Wells, efficiently dispatching Caroline Wozniacki, 6-2, 6-4 in their fourth-round match.
It was one of the biggest victories for Ivanovic since her 2008 French Open title propelled her to the top spot in the WTA rankings.
The Serbian had the right gameplan from the outset. In early matches, she played tentatively, taking herself out of points early with a pushed return and playing the rest on her heels. Against the defensive Wozniacki, Ivanovic turned the tables. Hers was an aggressive style of tennis that thrived when her forehand proved to be crisp.
"I just really knew I had to be aggressive and I knew I had to accept mistakes, because she does make you play extra balls.," Ivanovic told reporters. "I did that really well, and I served much, much better than I did in the last match. And also my backhand was a lot heavier than last time we played."
Ivanovic will face Marion Bartoli in a Thursday quarterfinal.
Wozniacki exits another tournament early and continues a slump that started after last year's Wimbledon. The parallel of losing to a former No. 1 who is making a comeback from her own freefall couldn't have been lost on her.
"I tried to fight and do my best but sometimes that is not enough," Wozniacki told reporters after the match.
She will drop to at least No. 6 in next week's rankings.