Adam B. Vary
December 14, 2009 AT 12:00 PM EST

Grizz Chapman, who acts as part of Tracy Morgan’s loyal entourage on NBC’s 30 Rock, will announce on the Dec. 15 episode of The Dr. Oz Show that he needs a kidney transplant, reports People. Chapman suffers from severe hypertension, but he must lose 75 pounds before he can become a viable transplant candidate. “Whatever I can do for the longevity of my life, I’m going to do,” he says.

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