Juventus have won their seventh consecutive Serie A title, after drawing 0-0 at Roma.
Massimiliano Allegri’s men needed to get at least a point or for Napoli to lose at Sampdoria.
Juve battled to a goalless draw against 10-man Roma, while Napoli won 2-0 at Sampdoria.
Roma’s Radja Nainggolan saw red in the 68th minute, but the capital outfit held firm against the Champions, who secured their 34th League title.
The draw means Juventus have 92 points, while Napoli have 88 points, with one game left to play in the season.
Allegri has now secured Juve’s fourth consecutive domestic double, since he took over the reigns at the Turin-based club in 2014.