Kenan Yildiz is the fifth Juventus player to score in both league matches against Napoli in a single Serie A season in the three-points-for-a-win era
Juventus dealt a huge blow to Napoli's Serie A title hopes with a 3-0 victory at Allianz Stadium.
Canada forward Jonathan David finished from close range in the 22nd minute, beating Napoli goalkeeper Alex Meret at his near post.
Fabio Miretti came on as a substitute and made an instant impact, playing the ball into Kenan Yildiz who curled past Meret to double Juve's lead.
With four minutes remaining, Filip Kostic fired home from the edge of the box to complete a resounding victory.
The result means Juventus move up to fourth, a point behind champions Napoli, who are nine points adrift of leaders Inter Milan in third.
Both sides will be in Champions League action on Wednesday with Napoli hosting Chelsea, one of Napoli boss Antonio Conte's former sides, while Juventus travel to Monaco (20:00 GMT).
