Michael Johnson analyzes Usain Bolt's sprinting. "Michael Duane Johnson (born September 13, 1967) is a retired American sprinter. He won four Olympic gold me...
Usain Bolt Wins Olympic 100m Gold - London 2012 Olympics
Usain Bolt - The Fastest Man Alive (The Movie)
Usain Bolt beats Gay and sets new Record - from Universal Sports
Usain Bolt's Training Session
Usain Bolt: Can the world's fastest man beat a bus?
Michael Johnson analyzes Usain Bolt's sprinting
Usain Bolt Wins 200m Final - London 2012 Olympics
Usain Bolt 9.58 100m New World Record Berlin [HQ]