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Long-term Everton target Gerard Deulofeu will return to Barcelona this summer with strong words of advice from Sevilla boss Unai Emery.

The Spanish winger has spent this season on loan at the Europa League champions but has made just 28 appearances and scored three goals.

Deulofeu, 21, was at Everton during Roberto Martinez’s first campaign in charge and became a fan favourite for his trickery and pace out wide.

Barca sent the La Masia graduate to fellow La Liga outfit Sevilla in hope of taking his development to the next level but Deulofeu has struggled to make an impact.

And Emery says the gifted winger must mature and become more of a team-player if he is to fulfil his potential.

“He has incredible qualities but lacks others. Put him out there, one on one and ... pfff,” Emery, speaking to the Guardian, said in admiration.

“But make him play football with team-mates, on a big pitch, and it’s hard.

“He doesn’t have the maturity or capacity for sacrifice yet.

“I told him: ‘There are players here who aspire to a contract like yours, men with less talent but more hunger.

“Iborra, Carriço, Vitolo. They know what it costs. You haven’t experienced that. When you do, you’ll grow. I hope you get that. If not here, somewhere else.’”

Blues boss Roberto Martinez has made no secret of how highly he rates Deulofeu but has played down hopes of Everton re-signing him this summer.

Deulofeu, whose long-term future at the Nou Camp remains unclear, was not in the matchday squad as Sevilla retained the Europa League on Wednesday night.