Juventus head coach Massimiliano Allegri was unimpressed despite watching his team chalk up their 10th win in 11 unbeaten Serie A matches this season – claiming the defending in their 3-1 win over Cagliari "just isn't good enough".
The Scudetto holders got off to a flyer, with Paulo Dybala scoring inside the opening minute but Cagliari levelled after the half hour through Joao Pedro.
A Filip Bradaric own goal quickly restored Juve's advantage but they endured some nervy moments before substitute Juan Cuadrado settled the issue three minutes from time.
The victory takes Juventus to the best-ever top division start in their history, and tied them with the best Serie A starts of all time, but Allegri was in no mood for plaudits after the win.