Pittman is expected to split snaps with Andre Hall after tailback Selvin Young strained his left groin.
Pittman is coming off his best game since joining the Broncos this summer as a free agent.
He had two key third-down runs that led to 10 points in Denver's 16-13 victory over the Tampa Bay Buccaneers.
Pittman has been trying to convince the Broncos to give him the ball more and says he's looking forward to getting more carries Sunday.
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