Bears linebacker Nick Kwiatkoski is likely done for the year with a season-ending pectoral injury, Ian Rapoport of NFL.com tweets. Once confirmed by medical testing, Kwiatkoski will be placed on injured reserve. 
Kwiatkoski, a fourth-round pick in last year’s draft, was moved into the starting lineup in the wake of Jerrell Freeman‘s pectoral injury and concussion. Now, Chicago is down two ILBs and their best in-house option is former UDFA Christian Jones. Jones has started 20 games for the Bears in the past, but he is not an ideal first string player.
Kwiatkoski, 24, appeared in 14 games as a rookie, including seven starts. He finished out with 42 tackles, one sack, two passes defensed, and one forced fumble.
The Bears lost to the Bucs 29-7 on Monday, dropping them down to 0-2. They’ll look to get in the win column on Sunday when they face the Steelers at Soldier Field.
I think you mean the Bears lost Sunday