Mary Elle Matthews/ NBC
Tracy Morgan will miss "30 Rock" following surgery to replace a kidney.
ET has learned that the comedian/actor has been written out of at least two episodes of the NBC Thursday night comedy to recover from his operation.
Tracy, who stars as Tracy Jordan on the series, had surgery around Dec. 10 and has already been seen at a New York Knicks game on Friday, Dec. 17.
A rep for Tracy told ET, "Tracy is doing well and taking some much needed time to recover after the surgery. He is looking forward to going back to work after the holidays."