Usain Bolt the only athlete who upstaged swimmer Michael Phelps in the recent Beijing Olympics. The Jamaican sprinter surprisingly set two individual world records in the 100 and 200 meters and was part of a relay world record Jamaican team.
"If you're enjoying yourself in your sport and enjoying the competition, you're going to get better." -Eric Shanteau, an Olympic swimmer who was diagnosed with cancer less than two months before the Beijing Olympics.
Michael Phelps wins eight gold medals at the Beijing Olympics (2008) -- Not only can Baltimore claim the greatest baseball player of all time and the greatest quarterback, but Phelps is already the most prolific Olympic swimmer, and he's headed for the London Olympics this summer.