She will meet American Jill Craybas in the final, who upset second seed Tamarine Tanasugarn 6-4 4-6 6-4.

BBC: Carlsen books final spot

Pennetta's 16th-seeded compatriot Francesca Schiavone was dumped out by veteran American qualifier Jill Craybas, who won 7-6 (9-7) 6-2.

CNN: Sharapova on song as L.A. seeds tumble

Baltacha's defeat, which followed Keothavong's on Sunday, means Katie O'Brien, who faces Jill Craybas on Tuesday, is the sole remaining British woman in the draw.

BBC: Elena Baltacha goes out with a fight at French Open

On the same side of the draw, Zvonareva is next up against unseeded Belgian Yanina Wickmayer, who beat American wildcard Jill Craybas 7-6 (7-2) 6-1.

CNN: No. 1 Safina first to reach WTA showpiece

She will next play the winner of the match between fifth seed Meilen Tu and Jill Craybas that was suspended because of darkness after two sets.

BBC: Leon Garcia advances