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Don Hutchison says it would be a 'hammer blow' to Everton if Ronald Koeman were to leave for Barcelona.
Barca were hammered 4-0 by Paris Saint-Germain on Tuesday night and manager Luis Enrique's position is under real threat.
Koeman, who starred for the Spanish giants in his playing days, is reportedly being eyed as a potential replacement for Enrique.
Former Toffee Hutchison admits the Dutchman would not be able to turn down the job at the Nou Camp if it was offered to him - but hopes it will not come to that.