Chelsea striker Romelu Lukaku says he has returned to the club as the "complete package".

The Belgian made just 15 appearances during his first spell at Stamford Bridge before leaving for Everton in 2014.

Now after stints at Manchester United and Inter Milan, the 28-year-old feels he has improved immensely since those early days.

On the progress he has made, Lukaku told the club's website: "I'm much more calm. I've matured with fatherhood and I'm more laid back.

"After winning in Italy and knowing what it takes to get there, that really helped me. In the last three years, I've been able to build something that I can take on for the rest of my career.

"It can be complicated but when you really set your mind to do something and you really dedicate everything that you have to that goal, you can achieve it.

"I recognised my little qualities and talent but I also knew what I was not good at and I really spent a lot of time working on those attributes to be the complete package.

"Now, it feels good. I'm very happy with the opportunity and we've started really well as a team. My team-mates have made life very easy for me and the coach is doing a great job. Our performances have been good but we're always looking for the next challenge."