Isaiah Simmons amplifies NFL draft buzz with 4.39 40-yard dash
2020 #NFLCombine: Isaiah Simmons First 40, ARE YOU SERIOUS!? 😳 Isaiah Simmons is a 6'4, 238-pound LB and he just ran a 4.39 ⚡(via NFL), By NFL on ESPN
Simulcam of Isaiah Simmons' 4.39 40 yard dash with other dashes from 8 of the NFL's top stars
Isaiah Simmons 4.39 40-yard Dash
College football Freaks List 2022: Bruce Feldman's rankings, with Michigan's Mazi Smith at No. 1 - The Athletic
2023 NFL Combine Takeaways: Six Observations About the Draft Class - The Ringer
Isaiah Simmons 4.39 40-yard Dash
NFL Draft 2020: Isaiah Simmons at NFL Combine, runs a 4.39 40-yard dash, top draft prospect, can play any defensive position
2020 NFL combine - Cornerbacks and safeties work out Sunday - ESPN
Isaiah Simmons: Five facts about the new Cardinals linebacker