Cagliari

Juventus 4-0 Cagliari

Despite a dominant first-half display, Juve - who were defeated by Lazio in the Supercoppa Italiana in their final match of 2019 - were unable to find a way through before Klavan's calamity.

But once presented with a clear chance, Ronaldo made no mistake, keeping his composure to beat Robin Olsen, who was beaten again by the former Real Madrid star from the spot in the 67th minute.