Serbia's 2008 French Open champion will next play Dutch world No. 91 Michaella Krajicek.
CNN: STORY HIGHLIGHTS
2.
There was a shock on Court 13, where 31st seed Michaella Krajicek, who thrashed Britain's Katie O'Brien in the previous round, beat eighth seed Anna Chakvetadze in a marathon three-set battle.
BBC: SPORT | Tennis | Jankovic survives Safarova battle