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After an ankle injury disrupted Ross ' progress during two seasons at Arsenal , she returned to Hibernian on loan in January 2011 , before signing for Celtic for the start of the 2012 season .
 Ross, Arsenal
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ross, Arsenal