(CBS) In what was simply a formality, the Bears placed defensive tackle Nate Collins on the Injured Reserved list on Wednesday.
The team also promoted defensive tackle Christian Tupou to the active roster, after signing him to the practice squad on Monday.
Collins tore his ACL in Sunday’s loss to the Saints and will miss the remainder of the season. Defensive tackle Henry Melton also tore his ACL earlier in the season.
Tupou will likely only play in emergency situations when the Bears face the Giants at Soldier Field on Thursday night.