League top-scorer Paulo Dybala grabbed a hat-trick as champions Juventus won 3-1 at Sassuolo on Sunday to stay top of the Italian Serie A.
The Bianconeri have a maximum 12 points and lead on goal difference from Inter Milan, who won 2-0 at Crotone Saturday.
Dybala has eight goals this season for a total of 52 from 100 overall games with Juve.
The Argentina ace beat Andrea Consigli in the 16th minute, firing a first time shot into the net from 25 yards from Mario Mandzukic's assist.
Juventus flew out of the traps in the second period and doubled their advantage courtesy of another brilliant Dybala strike.
The 23-year-old stabbed the ball into the bottom corner from just inside the area after good work from Juan Cuadrado.
Sassuolo hit back almost immediately, however, when Politano bundled in from close range two minutes later after Claud Adjapong's cross was scrambled into his path by Falcinelli.
After Dybala had been brought down outside the box, he completed his hat-trick with the resulting free-kick, curling it past Consigli to score in the 63rd minute.
"I am happy because I got two hat-tricks (this season)," Dybala said.
"I am Dybala and I do not like to be compared to (Barcelona compatriot Lionel) Messi, who is one of the greatest players in the history of football. I just want to be myself."
Dries Mertens also netted a hat-trick, including two penalties, as Napoli secured a club record ninth successive Serie A victory and recovered from its surprise defeat to Shakhtar Donetsk in the Champions League midweek.
"We know that we can hurt our opponents, even if they have studied the way we play, against Shakhtar we didn't play as we know how to," Mertens said.
"The season is long. Inter and Juve are doing well, we'll see what happens."
Nikola Kalinic was denied a hat trick on review as AC Milan beat Udinese 2-1 to bounce back from last weekend's 4-1 mauling by Lazio.
Kalinic thought he had scored a third goal eight minutes from time but it was ruled out for offside after a video review.
Duvan Zapata scored 20 seconds into his Sampdoria debut but Torino fought back to draw 2-2 as both sides remained unbeaten this season.
Atalanta was denied an early penalty and also had a goal ruled out on video review but had a late spot-kick awarded by the VAR to draw 1-1 at Chievo Verona.
Elsewhere, newly promoted Spal lost 2-0 at home to Cagliari.