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Joe Hill was burning up the stop watches today at the USU pro day, running the 40-yard dash in 4.26. That time was faster than any at the 2015 NFL combine, where UAB receiver J.J. Nelson posted a 4.28 as the fastest and Trae Waynes, a corner out of Michigan State, was second with a run of 4.31.

Keep in mind Hill's run was clocked with a stop watch, which can be from .1 to .2 faster than electronic clocks, but it's still an impressive showing and may have helped Hill create a little buzz about himself, particularly since the 40 is given so much weight by pro scouts.

Hill, a 5-foot-11, 190-pound running back out of Fullerton, Calif., finished the 2014 season with 575 yards and four touchdowns on 118 carries. He also had seven receptions for 148 yards and a touchdown.

"I've ben working on my start since I gain speed after the first 10 yards," he said. "I knew that was holding me back so I've worked hard on it the past few months to stay low and hit my stride then let my natural speed pick up."

His time might have you wondering what the fastest times at the combine have been.

Running back Chris Johnson out of East Carolina set the mark in 2008 for the combine's fastest 40 since the combine started using electronic clocks in 2000, running the 40 in 4.24 seconds.

When hand timers were used Auburn's Bo Jackson ran 4.12 in 1986 and Deion Sanders ran a 4.27 in 1989.

— Lya Wodraska