Everton manager Roberto Martinez described new recruit Gerard Deulofeu as a 'diamond' with 'incredible footballing talent'.
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The Blues boss added the Barcelona teenager to his squad on Wednesday - his fourth signing this week.
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And Martinez declared that Deulofeu's season-long loan move has presented Everton with one of Europe's foremost attacking prospects.
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The Goodison chief said: "Gerard is a real diamond of Spanish football and a boy with incredible footballing talent and I am delighted that he has chosen to take the next step of his career with Everton.
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"He is a young man with a lot of potential to be a real star and the Everton family is the perfect environment for him to progress.* The warmth, patience and understanding of Goodison Park is exactly what he needs to carry on fulfilling his potential.
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"The experience that we have in our dressing room will help him in his development and he will bring a completely different penetrating approach to our group.
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"We understand a lot of other top clubs around Europe were interested in Gerard so it is fantastic he has joined us."