Barkley posted a 4.42 in his second attempt.
"After the towering Miller (6-9, 310 pounds) set the combine broad jump record, skying 10' 1" - surpassing Philadelphia Eagles' 2013 first-rounder Lane Johnson (4th overall)'s 9'10" - and clocking an unofficial 4.90 40-yard dash, his rise up draft boards seems imminent.
Barkley said Thursday when he met the media he expected to dominate the event.
The explosiveness Barkley showed was no surprise, only solidifying his case as this draft's preeminent athlete and a future top-five pick. Hernandez, who weighs 327 pounds and started 49 games, ran a 5.15 40 and is built like a bus.
Only one player in last year's Combine - the Oakland Raiders' second-round pick, safety Obi Melifonwu - broke a 4.45 in the 40 and jumped at least 40 inches in the vertical. Penny, who led the nation with 2,248 rushing yards, starred during the Senior Bowl game, leading all running backs with 64 rushing yards and scoring on a 73-yard touchdown reception.
The 40-yard dash, meanwhile, has become the main attraction at the combine.
Even pro day workouts can be far more costly than they are necessary.
The Browns have a lot of holes to address on the roster after going 0-16 and taking a running back first overall hasn't happened since the Cincinnati Bengals took Penn State's Ki-Jana Carter in 1995, but it's time for history to repeat itself. That is a 233-pound athletic freak. At the end of the day, teams use the combine to gauge the mental strength of players as much as they use it to see how fast they can run or how high they can jump, if not more.
Other impressive sub-4.5 times were put in by San Diego State's Rashaad Penny (4.46), Arizona State's Kalen Ballage (4.46) and LSU's Derrius Guice.
Let's put them in some perspective from previous year performances by other running backs. Noted as one of industries better draft experts, Mayocks takes on the rookie class are always worth listening to. So after a strong performance at the NFL Combine, here are seven teams that should strongly consider trading up for Barkley in the upcoming draft to help improve their backfield. Davis did 33 reps on bench, had a 42-inch vertical and a 4.38-second time in the 40.