Robson completes GB women's quartet

Great Britain will have a full complement of four players in the women's tennis singles at the Olympics after Laura Robson was given a place in the draw following the withdrawal of Croatia's Petra Martic.

The 18-year-old has spent the last three days as first alternate since doubles partner Heather Watson replaced Alona Bondarenko on Tuesday, but Martic was known to be struggling and hopes were high Robson would get in.

The world number 96 slots into the draw in the bottom half and will play Czech Lucie Safarova in the first round on Sunday, with the carrot of a probable second-round meeting with third seed Maria Sharapova, who she troubled at Wimbledon last year.

Robson plays her first Olympic match on Saturday evening in the women's doubles with Watson, the pair taking on fifth seeds Angelique Kerber and Sabine Lisicki from Germany on Court 12.