A qualifier from Kazakhstan ranked 142 in the world dumped seventh seed and defending champion Li Na out of the French Open on Monday in the tournament's biggest shock so far.
Li came back from a set down to beat Christina McHale of the U.S. in round three, but crumbled against Yaroslava Shvedova on Monday after taking the first set comfortably.
The final score was 3-6, 6-2, 6-0 in favor of the 24-year-old Moscow-born player, who switched allegiances from Russia in 2008.
Shvedova was as high as world No. 29 in 2010, when she also reached the Roland Garros quarterfinal, but a knee injury has since seen her slip down the rankings.
She faces either Varvara Lepchenko of the United States or fourth seed Petra Kvitova in the quarterfinals.
