13 July 2012 Last updated at 09:48

London Grand Prix: Mo Farah ready to 'test' himself

British world champions Mo Farah and Dai Greene look ahead to their last competitive race before this summer's Olympics - the London Grand Prix, which takes place this weekend at Crystal Palace.

Farah says he will use the 5,000m event to "test himself" for London 2012, while Greene, who will compete in the 400m hurdles, talks of his pride and the pressures of being named Team GB Olympic athletics captain.

DIAMOND LEAGUE: AVIVA LONDON GRAND PRIX

  • Venue: Crystal Palace
  • Date: Friday, 13 and Saturday, 14 July
  • Starts: 17:35 BST on Friday and 13:00 on Saturday

Coverage: Live on BBC Two and BBC Sport website from 18:00 on Friday and from 14:00 BST on BBC One on Saturday. Also live on BBC Radio 5 Live