Chelsea striker Romelu Lukaku feels last season's loan at West Bromwich Albion was the making of him.
The Belgium international was a revelation with the Baggies under manager Steve Clarke.
"When I scored on my debut it started everything. That was a feeling I wanted to experience again, so I started to train even harder. I also learned a lot from Steve Clarke and was happy at West Bromwich.
"I'm not saying that I am a changed man since I came back, but certainly I'm more mature."
