The Flames have announced defenceman Chris Tanev has been placed on the Injured Reserve.
The 33-year-old was injured in Monday's overtime win against Columbus and missed Thursday's game vs. Chicago. In his absence, his usual defence partner MacKenzie Weegar skated alongside Nikita Zadorov against the Blackhawks.
In 40 games this season, Tanev has eight points, 85 blocked shots, and a 58% Corsi-for even-strength ranking.
The Flames also announced Brett Ritchie has been activated from the Injured Reserve. Ritchie's last game came on Dec. 31. In 30 games this season, the forward has six goals and eight points.