Inzaghi, a former Juventus and AC Milan striker known for goal-scoring prowess during his illustrious career lauded the addition of the 33-year-old.
The 57-time capped Italy international feels the Serie A champions are unrivaled in Europe with the five-time Ballon d'Or winner adding to Massimo Allegri's plethora of attacking options this season.
"Juventus are entirely dominant in Italy and in Europe were so close to winning the Champions League," he said before their 2-0 defeat.
"With Cristiano Ronaldo, who is the best player in the world, Juventus are the best team in Europe or at least one of the best teams.
"But that's nothing new because everybody knows it."