Martinez told evertontv: "I don't see Gareth as a player who is at the end of his career. The way he approaches the game, the way he loves the game - in another situation he could have opted to stay at Manchester City and just see his contract out, but that is not Gareth.
"He wants to enjoy his football and feel an important player and that is what he has at Everton. And that is why he has achieved what he has already in his career. But I feel Gareth is at the peak of his career. You look at the way he has been performing so far, he is somebody who is right at his peak."
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