Injuries derailed Bo Jackson's NFL career after just four baseball-truncated seasons and 2,782 yards. His career lives on in our memories as a handful of highlights, some commercials, a Saturday morning cartoon and an overpowered video-game character.
It all makes him a magnet for urban legends. Thing is, many of his larger-than-life feats really did happen.
But what about the most amazing one of all?
Did Bo really run a 4.12-second 40-yard dash at the 1986 combine?
No one doubts that Jackson was one of the greatest all-around athletes of American history, but was he really faster than the world's fastest Olympians?