89084
On January 29 , 2011 , professional boxer Timothy Bradley defended his WBO light welterweight title in a unification fight against WBC champion Devon Alexander .
 Timothy Bradley, WBO, WBC, Devon Alexander
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Timothy Bradley, WBO, WBC, Devon Alexander