Key Biscayne, FL (Sports Network) - Four-time runner-up Maria Sharapova secured a semifinal berth at the $4.195 million Sony Open tennis event.
The second-seeded former world No. 1 straight-setted eighth-seeded Italian Sara Errani 7-5, 7-5 in 2 hours, 29 minutes in a rematch of last year's French Open final, which was also won by the tall Russian superstar.
Sharapova popped six aces and broke Errani six times on Day 9 of this 13-day tournament and is now 4-0 lifetime against the gritty Italian.
The hot Sharapova is currently riding a 10-match winning streak, which includes a title at Indian Wells two weeks ago and a quarterfinal victory over Errani in the California desert.
The career Grand Slam winner Sharapova lost to Polish star Agnieszka Radwanska in last year's Sony Open finale and was also the runner-up here in 2011.
Sharapova will meet the Roberta Vinci-Jelena Jankovic winner in the semifinals Thursday on the hardcourts at Crandon Park. The former No. 1 Jankovic was a Key Biscayne runner-up back in 2008.