David Montgomery continues to put in work. The Chicago Bears running back has been spending the offseason working with Rischad Whitfield — also known as the Footwork King — and now, it appears as though the 23-year-old running back is working on his speed and acceleration in addition to his footwork.

In a video shared by Montgomery on Instagram last week, the former Iowa State standout is seen sprinting hard down a random driveway, looking as fast as he has looked since getting drafted by the Bears in the third round in 2019.

Speed Was Primary Knock Against Montgomery Coming Out of the Draft in 2019

Lack of speed and burst were among some of the weaknesses draft analysts and scouts found in his game coming out of Iowa State, and the Bears running back seems determined to improve them.

Here’s a snippet from Montgomery’s draft profile, courtesy of NFL.com: “Runs with some tightness in his hips…Unable to make steep cuts against the grain on backside…Below-average burst to open space…Lacks pure speed to outrun NFL linebackers to the corner…Makes a tackler miss, but doesn’t have juice to get away from the next one.”