Dementieva pulls out of Wimbledon

Elena Dementieva has pulled out of Wimbledon because of a calf injury.



The Russian world number five picked up the injury during her French Open semi-final against Francesca Schiavone and was forced to retire.



Dementieva, who quit the match after losing a first-set tie-break, had said after her quarter-final win that she was struggling with a calf problem.



She reached the Wimbledon semi-finals in 2008 and 2009 but will miss this year\'s event, which starts on June 21.



Dementieva lost to Venus Williams two years ago and her younger sister Serena last year.