Alajbegovic stunner piles pressure on Allegri

WATCH Serie A LIVE on beIN SPORTS | Sign up TODAY!! | AU | NZ

Allegri and Luciano Spalletti were both under pressure coming into this crunch clash, but it was the latter who was on the right side of the result. 

The scoring was opened in style by Alajbegovic, with Jeremie Boga sealing the win in the closing stages after Napoli saw Luca Marianucci sent off for a second bookable offence. 

Napoli made a strong start at the Allianz Stadium and only a sensational save from Guglielmo Vicario stopped Lorenzo Lucca's header from finding the net in the eighth minute. 

Juan Cabal then hit the left post from Teun Koopmeiners's inviting corner, with Weston McKennie then seeing his appeals for a penalty waved away after Mathias Olivera clumsily stood on the back of the American's foot inside the area. 

The visitor then almost punished Cabal's loose pass when Frank Anguissa collected possession and found Matteo Politano, but after he pulled back the ball for Noa Lang to strike, he could only fire his attempt over the crossbar. 

Alex Meret then got down low to thwart Alajbegovic in first-half stoppage time, with Vicario then on his toes to challenge Politano after Jhon Lucumi's slip just before the hour.

Spalletti turned to his bench and introduced Edon Zhegrova, and he made the desired impact. His driving run saw him lay off the ball to Alajbegovic, who drove at the Napoli defence before crashing a superb strike into the net off the right post. 

Napoli's hopes of a comeback were dented in the 75th minute when Marianucci needlessly chopped down Cabal and picked up his second yellow card, having received his first for pulling the shirt of Nick Woltemade.

Juventus made its man advantage count three minutes from time through Boga, who cut inside from the left-hand side and bent a glorious shot into the bottom-right corner to seal the victory.