"I looked at the quality of our squad this summer and the fact we will have no cup competitions, so longer to prepare for the Serie A matches. Yes, I continue to think we are in the title race," he told Gazzetta dello Sport.
"At Roma we will understand if we can really play on level terms with the other sides challenging for the Scudetto. This is the test we were waiting for, a crucial encounter to measure our real potential."
The French ace added: "A goal against Roma is worth so much more.
"I scored a brace here two years ago and this is the perfect occasion to celebrate entering triple figures.
"It's a great stadium like the Olimpico, a spectacular team that wants to win the Scudetto. Games like this give you extra motivation and we are already so charged up."