Usain Bolt says he will just be happy to successfully defend both sprint titles and stay free from injury at the world championships, ruling out the prospect of lowering his 100-meter world record The Jamaican will take on European champion Christophe Lemaitre of France and teammates Nesta Carter and Michael Frater at the Diamond League meet in Monaco on Friday, his last 100 before the worlds open Aug. 27 in Daegu, South Korea. After being hampered by injuries last season, Bolt's season-best time of 9.91 seconds is well short of his world mark. Bolt says “I'm not where I want to be. It is getting better but it's a long way from 9.58, for sure.” After Monaco, Bolt's final race before the worlds will be in the 200 at Stockholm.