105803
Mike Tyson vs. Tyrell Biggs , billed as " The Clash for the Crown " , was a professional boxing match contested on October 16 , 1987 for the Undisputed Heavyweight Championship , which consists of the WBA , WBC and IBF Heavyweight Championships .
 Mike Tyson, Tyrell Biggs, WBA, WBC, IBF
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Mike Tyson, Tyrell Biggs, WBA, WBC, IBF