Polamalu has missed 10 full games and most of two others with a pair of left knee injuries. He hasn't played since Nov. 15 against Cincinnati because of a sprained posterior cruciate ligament.
Polamalu called his current layoff "frustrating," but said it would be difficult to play after only a few days of practice following such a long time off.
According to Polamalu, his knee is still healing. He did not run at close to full speed and he appeared tentative doing some work.