"Beyond the result, I am happy with that first test. I felt at ease. We still have to sort out some details in attack but it will come. I am confident. I have adapted quickly," he told L'Equipe.
"Playing playmaker or not? I have just arrived and the only important thing to me is to play - in any position. I would be even keen to play at left-back. There are a lot of talented players in that team. There is competition - it is the highest level."
Chelsea begin their Premier League campaign with a trip to Wigan Athletic next Sunday.