Romelu Lukaku admits he's spoken with Didier Drogba since his return to Chelsea.
Chelsea legend Drogba has apparently been delighted with Lukaku's form in recent years.
"He was really happy about the improvements I made in the last couple of seasons," the 28-year-old said.
"But there is always work to be done, it's all about improvement week in, week out.
"Now I get the chance to join a team that's very hungry and very ambitious. I can't wait to add something.
"I did a full pre-season so now I'm just trying to get to know my teammates better."
He believes he returns to Stamford Bridge as a more mature player.
"Maturity, that's been important," he said when asked how he had adapted his game.
"I feel I've learned much more about myself and set standards for myself. I feel I have become more complete."
