Cristiano Ronaldo was not involved in any of Juventus' three goals as Massimiliano Allegri's men made a winning start.
Cristiano Ronaldo's Juventus debut ended in a dramatic 3-2 victory at Chievo, though it was substitute Federico Bernardeschi who was the reigning Serie A champions' stoppage-time hero.
Despite leading through Sami Khedira's early strike, Mariusz Stepinski's first-half header and Emanuele Giaccherini's penalty after the break ensured Chievo led.
Mattia Bani's own goal levelled matters with 15 minutes to go and Mario Mandzukic thought he had won the game for Juventus only for VAR to disallow the goal, with Ronaldo having possibly handled and collided with goalkeeper Stefano Sorrentino in the build-up.