03/18/1998 AT 12:00 AM EST

Hulk Hogan, 45, to announce his retirement from pro wrestling, Thursday, on Jay Leno's "Tonight" show. Hogan is under contract to World Championship Wrestling for two more years, but there are indications that his popularity isn't what it once was. A WCW spokesman told TV Guide that Hogan's recent pay-per-view match with the Warrior didn't bring in as much money as had been expected.

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