Everton boss Roberto Martinez is confident of keeping hold of Romelu Lukaku.

Martinez is already planning for next season with Lukaku spearheading his forward line.

"I have no concerns at all," he said. "I've said before Romelu is a vital player for us. He is someone we made a real big investment in because we believe in him.

"I always felt he has got the potential to become one of the best and it is not a worry whatsoever.

"At this present time all we want is for him to have a good break because last season coming back after the World Cup was tough and you have seen a different Romelu from January onwards. What we want is a good break for him and we will see the best of Romelu playing for Everton next season. I have no concerns about that at all."