Watch: Lattimore leaves most of DB group in his dust during 40

Marshon Lattimore's position as a top-15 pick was secure before the combine, barring a disastrous performance, so the cornerback didn't necessarily need to run a fast 40-yard dash.

But the former Ohio State standout did it anyway, posting a blistering time of 4.36 seconds Monday - the third-best mark among all defensive backs - likely cementing himself as the draft's top cornerback.