By Caroline Cheese BBC Sport at Wimbledon

Mauresmo has reached the semis on her last four visits to SW19

Top seed Amelie Mauresmo booked a Wimbledon semi-final against Maria Sharapova with a 6-1 3-6 6-3 win over a misfiring Anastasia Myskina.

Mauresmo cruised through the first set, with Myskina managing just one winner.

The ninth seed contributed only two in the second set but was grateful for a host of unforced errors from Mauresmo.

The match improved in the decider, but Myskina faltered at 2-3 and Mauresmo held her nerve to ensure the top four seeds will contest the semi-finals.

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Mauresmo, infamous for squandering winning positions, looked in trouble again after waltzing through the opening set.

I'm not happy but I won and that's the most important thing Amelie Mauresmo

The 26-year-old committed 17 unforced errors to allow Myskina, who had been looking at her support camp with increasing desperation, a lifeline.

However, after a strong start by both players in the decider, it was Myskina who cracked, throwing in a double fault in a loose game to give Mauresmo a 4-2 lead.

The Frenchwoman netted a fairly routine volley on her first match point at 5-2 but shrugged off that setback to serve out victory in the next game.

"I'm a little bit relieved," admitted Mauresmo, who has reached the semi-finals on her last four visits to Wimbledon but has never gone beyond that stage.

"I'm not happy with the way it went in the second and third but I came back and won and that's the most important thing.

"I felt comfortable in the first set but I suddenly started not going forward as much and she came back.