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In 2005 , he was signed by Spanish club Villarreal CF for a fee of € 2 million , alongside another player in his position , Sebastián Viera .
 Villarreal CF, Sebastián Viera
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Villarreal CF, Sebastián Viera