Team GB given Robson boost

Laura Robson will represent Great Britain in the women's Olympic tennis competition after being given a late call-up to the singles.

The 18-year-old was set to compete in the women's doubles alongside Heather Watson but has now been handed a chance to play in the singles as well after Croatian Petra Martic was forced to withdraw because of an injury.
The former junior Wimbledon champion will play her first-round match against Lucie Safarova of the Czech Republic on Sunday, with the winner likely to face Maria Sharapova in the next round.
Great Britain will have four women competing in the singles at the Olympic Games, with Watson joining Elena Baltacha and Anne Keothavong earlier this week in the draw after being given a spot when Alona Bondarenko withdrew.
Robson and Watson will kick off their doubles campaign on Saturday, with the pair taking on fifth seeds Angelique Kerber and Sabine Lisicki from Germany.