Last year's runner-up, Li Na, beat fellow Chinese player Zheng Jie 6-3, 6-1.

WSJ: Back Might Keep Andy Murray Out of French Open Tennis

Former French Open winner Li Na overcame Chinese compatriot Zheng Jie 6-3 6-1 as she bounced back from her first-round defeat in Madrid, while there were also victories for Samantha Stosur, Maria Kirilenko and home favorite Roberta Vinci.

CNN: Injured Murray to miss French Open?

Zheng's compatriot Li Na followed her into the quarterfinals on Monday after stunning fourth-seeded Dane Caroline Wozniacki in straight sets.

CNN: Tennis: Henin battles into semis