Roma sealed the first place in their Champions League group, following their win over the French side.
Matteo Brighi and Francesco Totti scored the goals for the Giallorossi.
“Roma has proved to be an intelligent and mature team,” said Spalletti.
“We were patient and waited for the right time to hit without risking anything. I have to compliment my players.
“Brighi has been one of the best on the pitch. After a difficult start to the tournament we could only wait and hope.
“It was important for us to remain calm, and not to collapse in the difficult times.”