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Background Only two month prior to his match with Biggs , Tyson had defeated Tony Tucker by unanimous decision to unify all three major heavyweight championships and become the Undisputed Heavyweight Champion .
 Biggs, Tyson, Tony Tucker
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Biggs, Tyson, Tony Tucker