The French outfit will take on Valencia in the last 16, the first leg of which will be played at the Mestalla on Tuesday.
"The squad as a whole is on top form," he told reporters. "Our players, even those who aren't getting much time on the pitch, deliver well.
"Valencia are also a team doing well; it won't be easy to advance. The four Spanish teams are in the running − this is not by chance."
PSG are currently six points clear at the top of Ligue 1.