29 March,2013 09:36 AM IST | | AFP
"With all the tournaments I have played, this one I have been so successful at but yet I haven't won it," said Sharapova, a four-time finalist at the Miami Masters.
Sharapova will battle for a place in the final against 22nd-seeded Serbian Jelena Jankovic who defeated Italian Roberta Vinci 6-4, 6-7 (6/8), 6-3.
In the men's event, third-seeded David Ferrer led the way into the semis as he rallied for a 4-6, 6-3, 6-0 victory over unseeded Austrian Jurgen Melzer.