Akiem Hicks returns to practice, while Bears hold out Khalil Mack as a precaution

Quarterback Nick Foles (hip) returned to practice as a full participant.

(670 The Score) The Bears hope to have two of their defensive stars healthier against the Lions on Sunday.

Defensive lineman Akiem Hicks (hamstring) returned to practice Thursday in a limited fashion, his first action since suffering the injury during a game on Nov. 16. Edge rusher Khalil Mack (back) was held out of practice again Thursday, though it's a precautionary measure by the team.

"I feel confident that he'll be able to go," coach Matt Nagy said of Mack.

Quarterback Nick Foles (hip) returned to practice as a full participant Thursday. He would be the Bears' backup if cleared for Sunday, as the team has already named Mitchell Trubisky its starter. Tackle Charles Leno Jr. (toe) and offensive lineman Germain Ifedi (calf) were each limited in practice.

The Bears (5-6) and Lions (4-7) kick off Sunday at noon from Soldier Field.

Chris Emma covers the Bears, Chicago’s sports scene and more for 670TheScore.com. Follow him on Twitter @CEmma670.