12900
He did not play many matches due to a combination of injury , the squad rotation system that Chelsea had where no player was guaranteed to be in the starting line up , and also because of his fall-out with the club .
 organization: Chelsea
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Chelsea 
Answer:
 organization: Chelsea