Bears stars Akiem Hicks, Khalil Mack miss practice while dealing with injuries

Running back Damien Williams (quad) practiced in full and is in line to start Sunday.

LAKE FOREST, Ill. (670 The Score) -- Bears edge rusher Khalil Mack (ribs/foot) and defensive lineman Akiem Hicks (groin) led a long list of players who didn't practice Wednesday at Halas Hall.

Mack suffered his foot injury in Chicago's loss at Cleveland on Sept. 26. It's unclear when he suffered the ribs injury. Mack was listed as questionable last Sunday but played in the Bears' win against the Lions, recording his fourth sack of the season. Hicks suffered his groin injury on the Bears' first defensive snap Sunday and didn't return.

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Bears coach Matt Nagy declined to speculate on how long Hicks could be sidelined. Nagy did confirm that running back David Montgomery suffered a left knee sprain and will miss "some time." It's expected to be an absence of at least four weeks, ESPN reported Tuesday.

Veteran running back Damien Williams was a full participant in practice Wednesday after suffering a quad injury Sunday. Assuming he's healthy, Williams will be the new starter at running back without Montgomery, Nagy said. Safety Tashaun Gipson (hamstring) practiced in full after missing the last two games.

The Bears were also missing tight end J.P. Holtz (quad), linebacker Joel Iyiegbuniwe (hamstring) and tight end Jesse James (personal). Receiver Darnell Mooney (groin) remains a limited participant in practice.

The Bears (2-2) visit the Raiders (3-1) on Sunday in Las Vegas.

Chris Emma covers the Bears, Chicago’s sports scene and more for Follow him on Twitter @CEmma670.

Featured Image Photo Credit: Jonathan Daniel/Getty Images