Juventus v Cagliari
Cristiano Ronaldo got his 2020 up and running with a hat-trick as Ragnar Klavan's error helped gift Juventus a 4-0 win over Cagliari, sending the champion back above Inter at the Serie A summit.
Despite a dominant first-half display, Juve - which was defeated by Lazio in the Supercoppa Italiana in its final match of 2019 - was 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.