Forte went through a full practice Friday and was listed probable for the game at Detroit, which the Bears will need to win if they have any shot at making the playoffs.
Linebacker Brian Urlacher is doubtful for the Lions game, although he went through a limited practice Friday in his first workout since before suffering a hamstring injury Dec. 2.
The team also announced Friday it had waived defensive end Cheta Ozougwu and promoted running back Harvey Unga to the 53-man roster from the practice squad. That gives the Bears two healthy running backs besides Forte. Kahlil Bell is the other backup.