Everton's Gareth Barry has claimed that Roberto Martinez is the best manager to bring out Romelu Lukaku's peak form.
The 22-year-old has scored 11 goals in all competitions this season for the Toffees, including four in his last three matches in the Premier League.
Barry has backed the Belgium international to keep on improving under the guidance of Martinez to become one of the world's leading strikers.
He told the club's official website: "In terms of Rom's age, he is going to be right up there at the top of the strikers I've played with. Because of how long he's been around and because of how big and strong he is, people forget his age.
"He is still learning and under the manager here, his standards and performances are going to keep going up.
"Like any striker, it is all about confidence. He had a strong pre-season and hit the ground running."
Lukaku signed for Everton on a permanent basis for £28m in 2014.
