Texas Longhorns safety Andrew Mukuba runs the 40-yard dash at the 2025 NFL Scouting Combine.

Pittsburgh Panthers tight end Gavin Bartholomew runs the 40-yard dash at the 2025 NFL Scouting Combine.

Isaiah Simmons 40 time Simmons brings lightning speed that should bode well in any defensive scheme. At the 2020 NFL Combine, he led all linebackers with a 4.39-second 40-yard dash.