OSLO — Triple London Olympic champion Usain Bolt is injury free and eyeing three gold medals at this year's world championships in Moscow in August. As part of his preparations, the Jamaican 100 and 200 meters world record holder will run the longer sprint at the Bislett Games Diamond League meeting in Oslo on June 13. “The aim for 2013 is the IAAF World Championships in Moscow in August. My goal is to win three gold medals and repeat my Olympic Games success,” Bolt said in a news release on Wednesday. “My preparations have been good. I hope to come to Bislett prepared and ready to run a great race.” — Reuters