Romelu Lukaku insists he has nothing to prove at Chelsea.
The Belgian endured two inconsistent seasons with Manchester United before leaving England to join Inter Milan in 2019.
He now returns to the Premier League with Chelsea, having spent three years with the Blues between 2011 and 2014.
Speaking at his introductory press conference, Lukaku said: "I don't have to prove anything to anyone. The only thing that motivates me is myself. I am a self-motivator and always have been. I'm a Chelsea player and happy to be here now.
"I have experienced success elsewhere and also a different playing style where it's more technical based and tactical.
"The Premier League has a bit of everything and the experiences I had a few years ago were great. I loved every minute of it on and off the field but the experiences in Italy made me more complete as a player.
"Now it's just about what I have learned in Italy. Watching the Premier League over the last few years, the players have got better, the teams have got better and I am ready for the challenge."