Gleison Bremer credits Cristiano Giuntoli for his improved form with Juventus this season.
The defender has just signed a new deal to 2028 and he highlighted the influence of sporting director Giuntoli after his summer arrival from Napoli.
He told Sky Sport 24: "This year was better, the first year was about settling in and we went through a lot of different things. This year Giuntoli arrived and gave me serenity, I learned from the mistakes I made and I feel very comfortable.
"I'm not saying that I have improved on a technical level, but that I am aware of my quality. This year there is also more time to train and feel good physically."
On facing Roma for the Serie A resumption, Bremer also said: "It's an important match, they won against Napoli 2-0.
"I haven't spoken to (Max) Allegri yet, but I played against (Romelu) Lukaku and I know how he plays: it won't be easy. How to deal with him? It depends on the area of the pitch: if you are short you can't anticipate him, he can turn and go towards goal."