If you haven't already, you may want to invest in some stock in David Montgomery of the Chicago Bears. Matt Nagy has been impressed with the rookie rusher and believes the best is yet to come.

“It’s been steady and just completely in one direction,” Nagy said. “OTAs was a lot of pass game, so he got good at that, and then we get to training camp and we get to put the pads on and we can see what can he digest. You can see his arrow is up. He wanted more carries [in the preseason opener]. I would have loved to give him more carries, but you have to be smart.”

On Thursday night, Montgomery made his preseason debut with the Bears against the Carolina Panthers. Montgomery was only given three carries but he turned those into 16 yards and a touchdown. The Bears rookie running back also showed his receiving ability with three receptions for 30 yards.

Earlier this offseason, Chicago traded Jordan Howard after Howard failed to adjust to Nagy's offense in 2018. As a result, the Bears did their research on the running backs in this year's draft and landed on Montgomery.

In college at Iowa State, Montgomery carried it 624 times for 2,925 yards and 26 touchdowns. He also showed he has some upside as a pass-catcher with 71 receptions during his collegiate career.

The Bears are anticipating to get a ton of production from Montgomery in his rookie campaign in 2019.

There are still improvements to be made for the Bears rookie but his stock continues to rise as the regular season nears.