Former British number one Elena Baltacha has died of liver cancer at the age of 30, it was announced on Sunday.

Serena Williams and Maria Sharapova eased through their Madrid openers Sunday but Novak Djokovic withdrew with the right wrist injury which could compromise his French Open dream.

Japan's Kei Nishikori sealed his fifth career ATP title and first on clay on Sunday with a 6-2, 6-2 win over Colombian Santiago Giraldo to claim the Barcelona Open.

Maria Sharapova claimed a hat-trick of Stuttgart titles on Sunday after coming from behind to win a three-set battle royal with Ana Ivanovic in Sunday's final.

Defending champion Maria Sharapova moved to within one victory of her third straight Stuttgart title after a 6-1, 6-2 win over Italy's Sara Errani in Saturday's semi-final.

Stanislas Wawrinka defeated Swiss compatriot Roger Federer 4-6, 7-6 (7/5), 6-2 on Sunday to win the Monte Carlo Masters as the Australian Open champion laid down a marker as a French Open dangerman.

Novak Djokovic took his winning run against world number one Rafael Nadal to three matches with a superb victory in the Sony Open final.

Serena Williams is through to her ninth Miami Masters final after beating Maria Sharapova at Crandon Park on Thursday.

Faced by a man wielding a tennis racquet like a wand, Novak Djokovic produced some magic of his own to claim victory in the final of the Indian Well Masters event.

World number one Serena Williams won a second French Open title 11 years after her first with a convincing win over defending champion Maria Sharapova.