If you recently heard a rousing chorus of "Norm!" coming from a Chicago-area hospital, now you'll know why.
"Cheers" star George Wendt, who played portly barfly Norm Peterson on the NBC sitcom, was hospitalized Sunday night and is receiving medical treatment after suffering chest pains, the Chicago Sun-Times reports.
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According to the paper, Wendt is expected to make a full recovery, but the 64-year-old actor has been forced to drop out of the stage production "The Odd Couple" at the Northlight Theatre, located in the Chicago suburb of Skokie.
Wendt was playing celebrated sloppy sportswriter Oscar Madison in the play, opposite "Saturday Night Live" alum Tim Kazurinsky, who plays Madison's fastidious roommate, Felix Unger.
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A representative for Wendt has not yet responded to TheWrap's request for comment.
Wendt is being replaced by Chicago actor Marc Grapey, who had appeared in the Broadway production of "The Odd Couple" and was playing Murray the cop in the Northlight production.