Coach Bruce Arians said this week that the rookie running back has earned a longer look in Sunday's NFC West showdown with the San Francisco 49ers.
"Each week it will increase a little bit," Arians said, per Fox Sports 910's Mike Jurecki. "He had a nice eight-yard per carry average. Chris (Johnson) is still the starter and we will keep bringing (David) along. He will have a vital role every week, just how big we will wait and see."
Against the Bears on Sunday, the rookie plowed through Chicago for 42 yards off just five attempts, more than doubling the 3.6 yards per carry posted by CJ2K.
Arians clearly enjoys having a veteran runner to lean on, but he went out of his way to praise the rookie, saying: "He is a whole lot like Matt Forte. They have a glide mode and it is really fast. It's deceiving."
It's not just Johnson's work in the backfield. He's proven to be a triple threat, scoring as a runner, receiver and return man on this 108-yard jolt against the Bears: