Usain Bolt is the GREATEST athlete in the history of all mankind ... at least so says Usain Bolt ... he crushed the competition to win the 200 meter final. 
Anyway, moments after he captured gold, Usain modestly touched on his accomplishments ... reportedly telling the media:

"I'm now a legend. I'm also the greatest athlete to live."

Bolt also gave the ol' tip of the hat to American sprinting legend Michael Johnson ... adding, "I am in the same category as Michael Johnson. I'm honored. It's all about Michael Johnson for me."