Hillman returned to practice earlier this week and has not had a setback on his hamstring injury, according to Lindsay Jones of the Denver Post.
The running back was expected to push Lance Ball for the backup role behind veteran Willis McGahee, but has struggled to stay on the field for much of the preseason. When healthy, however, Hillman is expected to be a major part of the offense as a receiving threat out of the backfield and a change-of-pace back behind McGahee.
Hillman was selected in the third round of the 2012 NHL Draft out of San Diego State and has not played in a preseason game yet this season, fighting through hamstring injuries for most of training camp. Hillman had aggravated his right hamstring last week and was held out against the Seahawks in the second preseason game.