World number four Agnieszka Radwanska has pulled out of next week's Brussels WTA tournament in a bid to protect her injured shoulder ahead of the French Open. The Polish star has been carrying the injury throughout the claycourt season where she lost in the second round in Madrid as well as Rome. "I have had some shoulder problems for a while & on clay it's getting a bit worse," Radwanska tweeted. "I'm afraid it might get even worse, with RG (Roland Garros) and grass coming up. So I felt I had to pull out. It's upsetting, I wanted to defend my title."

Serena Williams, who is looking for her record sixth Miami title, rolled over defending champion Agnieszka Radwanska 6-0, 6-3 to reach the final of the Miami WTA hardcourt event on Thursday. The top-seeded Williams will face Russian Maria Sharapova, who cruised past Serbian Jelena Jankovic 6-2, 6-1 in the other semi-final.

By Simon Evans MIAMI (Reuters) - Britain's Andy Murray fought back for a 6-7 6-1 6-2 win over France's Richard Gasquet to reach the final of the Sony Open where he will face Spaniard David Ferrer on Sunday. Murray recovered after making a mess of the first set where he was serving for it at 5-4 but double-faulted on break point and ended up losing out in the tie-break. Gasquet had been playing some inspired tennis but he was outplayed in the second set and the Scotsman never looked in danger in the third.

Maria Sharapova kept her quest for a first Miami title on track Wednesday with a hard-fought 7-5, 7-5 quarter-final triumph over Italy's Sara Errani. "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 WTA and ATP Masters hardcourt tournament but never the winner. "I've been so close to winning," she said. "I would love to win this. I've been coming to this tournament since I was a little kid. It would mean a lot to win it."