Chris Johnson is the sixth NFL player to rush for more than 2,000 yards.
But how would he fare on a running track, without a helmet and pads, against the world's fastest man?
We just might find out.
Sources close to the situation told ESPN NFL Insider Adam Schefter that representatives for the Titans running back and Olympic champion Usain Bolt of Jamaica have spent recent days trying to set up a race between the two men to determine who really is the world's fastest human.
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