Roberto Martinez says forward Steven Naismith is so much more than just an impact player - and is tipping the Scot to become an even greater influence at Goodison Park.
Naismith came on as a substitute last Sunday to score the decisive goal in the 3-1 FA Cup win over Swansea City, before later earning a penalty that was coolly dispatched by teammate Leighton Baines.
Naismith had also netted off the bench in the previous home outing against Aston Villa - but Martinez has heaped praise on the 27-year-old for his all-round contribution.
He recently claimed a brace as a starter in a 4-0 triumph over Stevenage and earlier this season bagged the only goal in a victory over Saturday's opponents Chelsea, having again been named in his manager's first XI.
"Stevie, at his age and with the experience he has at international level and now with us, has gone past that stage of being an impact player," said Martinez when quizzed on the forward's recent form.
"It's been a real joy to watch him enjoying his football and I think what it actually shows you is that he is someone who can adapt to different positions and bring a big, big strength into our squad.
"He's been very important so far and I still think he's going to get even better. We're really, really excited to see Steven Naismith develop into the player he can be with Everton."
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