Calhoun (knee) was placed on injured reserve Friday, ESPN's Adam Caplan reports.
Calhoun hadn't played since Week 11 versus the Texans due to an issue with one of his knees. He went under the knife this week to fix whatever's been bothering him and will hope to be back in time for the start of start of the 2017 campaign.
Calhoun was absent from practice all week, rendering the decision to keep him out Sunday unsurprising. It will be the fourth consecutive game missed for the rookie. Tyrell Adams should continue seeing an increased role providing depth at strongside linebacker while he is sidelined.
Calhoun (knee) has been ruled out for Thursday's game against the Chiefs.
Calhoun will miss his third straight contest due to the knee issue, while Tyrell Adams and Daren Bates could see additional reps as reserve outside linebackers.
Calhoun (knee) did not play in Sunday's game versus the Panthers.
Calhoun was unable to practice last week and subsequently missed his first game of the 2016 campaign. His level of participation in practice this week will likely shed light on his potential availability for Sunday's matchup with the Bills.