McLennan takes over in goal
Turek injured the knee while attempting to stop a shot by Ales Kotalik 1:33 into the first period of Saturday's 2-0 loss at Buffalo. He played the rest of the way with stiffness in the knee.
An MRI revealed that Turek has a sprained ligament.
Turek, 33, is 0-2 with a 3.38 goals-against average this season -- his third with the Flames since being acquired from the St. Louis Blues. He was forced to leave a game on October 11 against San Jose when Alyn McCauley crashed the crease and accidentally kneed Turek in the head.
Jamie McLennan, who is 2-0 with a shutout this season, replaces Turek as the starter.
The Flames recalled goaltender Dan Sabourin from Lowell of the American Hockey League to back up McLennan.
A native of the Czech Republic, Turek is 57-57-20 and a 2.55 goals-against average and nine shutouts over the previous two seasons with Calgary.