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Isaac Vallie-Flagg has suffered an injury and he is out of the World Series Of Fighting 23, replacing him against Estevan Payan will be Kamuela Kirk. Payan will be making his WSOF debut in this bout, but he is a veteran of the the UFC and Bellator MMA. Kirk will also be making his WSOF debut in this fight and four of his five pro bouts have ended in the opening round. World Series Of Fighting 23 takes place on September 18th from the Comerica Theater in Phoenix, Arizona with Justin Gaethje and Luis Palomino headlining.
