He set the 100m and 200m world records, again, at the world championships in Berlin. I was watching ESPN and the track and field reporter Larry Rawson did some math on Bolt and this is ridiculous.
40 yard dash in full flight to NFL end zone: 2.95 seconds
Rate of speed in full sprint: 26 MPH
Regular NFL combine 40 yard dash time: 3.82 seconds
So I'm thinking I don't care if he had never heard of football, give the guy a helmet, some pads and some money. Put his butt on kick return and punt return, teach him to catch, and tell him as soon as he gets the ball just RUN!