Sharp recalls seeing Lukaku as a youngster playing for Anderlecht.
He told evertonfc.com: "Anderlecht were winning 1-0 on the night and they brought on this kid with half an hour to go. The place erupted, with the fans chanting 'Lukaku, Lukaku'. I thought to myself 'who's this?'.
"He scored two goals and it was only afterwards that my son said he was 17 - I couldn't believe it.
"He was built like Didier Drogba, a man mountain. He looked the part and I knew then he was destined for good things.
"If he can be half the player Drogba was for Chelsea then he will do a sterling job for us."
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