Maria Sharapova wins Key Biscayne marathon

Sharapova rallied to beat No. 26-seeded Alexandra Dulgheru 3-6, 7-6 (6), 7-6 (5) in a match that ended at 12:19 a.m. Sharapova's opponent Thursday will be No. 21 Andrea Petkovic, who reached the semifinals with her second upset in two days, beating No. 6 Jelena Jankovic 2-6, 6-2, 6-4.
Petkovic eliminated No. 1 Caroline Wozniacki in the fourth round.
Sharapova's match took 3 hours, 28 minutes. She won despite 17 double-faults and twice as many unforced errors as Dulgheru.
Sharapova turned her ankle late in the third set and required treatment from a trainer in the middle of a game, but the injury didn't appear to affect her.