David Luiz believes he has returned to Chelsea a better defender, but expects coach Antonio Conte to take his game on to another level.
Luiz, who rejoined from Paris St Germain for £34ma fortnight ago, is set to make his second debut for the club at home to Liverpool on Friday night.
Luiz is expected to take the place of John Terry in the back four after the captain was ruled out for 10 days with an ankle injury.
Chelsea's decision to sign Luiz has been met with surprise and criticism from many pundits, but the Brazil international is confident he will prove his worth.
He said: "I have tried to improve and mature day by day. When you try new things of course you improve, that's why I tried a new league.
"But I want to continue to improve here. I never want to think that I know everything. I want to learn every day. I feel at home, I feel like I never left. I have a great relationship with everyone.
"The coach (Conte) loves football, that's why he's a passionate guy on the bench, celebrating and supporting the team.
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"He's a specialist in tactics and training in a tactical way, I'm excited to learn under him.
Every single coach has been important in my professional life. I want to learn, especially with him and his Italian style in a tactical way, this can make the difference."
