Usain Bolt has 'no worries' over facing Tyson Gay
Usain Bolt admits that defending his titles at the World Championships in Degu later this summer is his number one priority, ahead of Thursday's Diamond League meet in Rome.
Watch live coverage of the Rome Diamond League from 1900 BST on Thursday 26 May on the BBC Red Button and BBC Sport website (UK users only).
Andy Akinwolere traveled to Jamaica for World Olympic Dreams to meet Usain Bolt and the woman behind the world's fastest man - Usain's former sportsteacher Lorna Thorpe. See more on Monday 30 May on BBC Breakfast, and on the BBC News and World News channels.