With that, here are the fastest 40-yard dash runs in NFL combine history ... Also in the 1980s, Bo Jackson claimed he ran a 4.13 40-yard dash at a regional combine in 1986.

J.J. Watt, Chris Johnson, and Bo Jackson show what it means to be a ... Johnson held the record for the fastest 40 until Washington wideout John Ross broke it in 2017. Watt had one of the top ...