• Watch: Usain Bolt Resumes Training
World's fastest man Usain Bolt last week returned to training to prepare for the 2016 Rio Olympics.
"I have two more goals that I would love to accomplish before I retire," he said. And that's defending [winning] my Olympic title three times, and I would love to run sub-19" Bolt told media two weeks ago while visiting mexico.
"So those are the two goals that keep driving me on that I really want to do next season." Bolt added.