The Chicago Bears made a defensive acquisition Thursday in order to fill the potential void of Khalil Mack. According to NFL reporter Ian Rapoport, the Bears signed veteran pass-rusher Bruce Irvin.

Mack is listed as questionable for Sunday's home game against Lamar Jackson and the Baltimore Ravens. The Bears outside linebacker has missed the past two games due to a foot injury that he sustained in early October. He played with the injury for three weeks until finally being ruled out in Week 8 against the 49ers.

So far this season, Mack has recorded 19 tackles: 15 solo and 4 assisted. In this, 6 were tackles for losses. He also recorded 6 sacks for a total of 50 yards.

The Bears are struggling with a plague of injuries. Thursday's injury report listed 12 players, 5 of which did not participate in practice. Mack did not participate in the practice ahead of Week 11's matchup.

Although at home, the Bears are not favorited to win this weekend. They will attempt to upset the Ravens in Chicago to improve their record to 4-6. The Ravens currently leader the AFC North with their record of 6-3.

Bruce Irvin has not played in the NFL since Week 2 of the 2020 season with the Seattle Seahawks. Irvin has been an outside linebacker in the NFL since being drafted in 2012.