 The injury was later revealed to have caused a degenerative bone condition in Jackson's hip called avascular necrosis.Before being knocked out of the game, he rushed 6 times for 77 yards.Some Bengals fans theorize that this injury to one of the greatest athletes ever placed a curse on the Bengals franchise (sometimes called "the curse of Bo Jackson"), and that this curse is partially responsible for the Bengals' notorious failure to field a competitive football team for most of the next decade and half, and the Bengals have not won a playoff game since.