Teenager Moise Kean scored his sixth goal in as many league games but champions Juventus slumped to a shock 2-1 defeat at lowly SPAL on Saturday to put their Serie A title celebrations on hold.
Massimiliano Allegri’s side had needed just a point to claim a 35th Scudetto with a record six games to spare and Napoli a distant second.
Kean opened the scoring for the seven-time reigning champions when the 19-year-old stuck his foot out to direct a Joao Cancelo effort home after half an hour in Ferrara.
But Kevin Bonifazi (49) and Sergio Floccari (74) responded with precious goals which eased SPAL’s fight for top-flight football next season.
“Making records is very difficult, it takes energy and there is also Europe to concentrate on,” said Allegri, who rested key players including Cristiano Ronaldo ahead of next week’s Champions League decider against Ajax in Turin.