Cristiano Ronaldo scored a second-half hat-trick to lead Serie A champions Juventus to a 4-0 win at home to Cagliari on Monday, taking his tally to eight goals in his last five league games.
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.
Ronaldo’s penalty came after Giovanni Simeone almost snatched an equaliser against the run of play, but a strike from substitute Gonzalo Higuain and a composed third from Ronaldo comfortably ensured Juve made it 30 consecutive home league matches without defeat.
Juventus overtake Inter Milan to go top in Serie A, but Inter can go back to the summit if they beat Napoli at 19:45 GMT.
It was Ronaldo’s second hat-trick for Juve, having scored three against Atletico Madrid in last season’s Champions League last-16 tie.
The former Manchester United forward is the first player since Alexis Sanchez to score a hat-trick in the Premier League, La Liga and Serie A.