Krstic had started all 16 of Oklahoma City's games and was averaging 8.3 points. He was replaced in the starting lineup by Etan Thomas.
Krstic's absence left the Thunder with only nine active players. Guards Kevin Ollie and Kyle Weaver are scheduled for surgery Monday, and forward Nick Collison missed his fourth straight game because of a sore right knee.
Ollie has been out three games with right knee pain, and Weaver missed his second game because of a dislocated shoulder.