Pittsburgh Steelers running back Dri Archer is the fastest rookie in the NFL.

He ran the 40-yard dash in 4.26 seconds at the NFL scouting combine.

And Archer is anticipating a versatile role after a series of highlights at the collegiate level.

"It's going to be a big role, Archer told the Akron Beacon Journal. "But I'm just going to do whatever I'm asked to do. Play receiver, play running back, helping special teams. Whatever they want me to do, I'm going to do it."

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Aaron Wilson covers the Ravens for The Baltimore Sun