Ronaldo sets up all three goals as Juve crush Napoli 3-1

Cristiano Ronaldo was involved in all three of his team's goals as Juventus came from behind to beat Napoli 3-1 in a Serie A top-of-the-table clash on Saturday to maintain their perfect start to the season.

Cristiano Ronaldo was involved in all three of his team's goals as Juventus came from behind to beat Napoli 3-1 in a Serie A top-of-the-table clash on Saturday to maintain their perfect start to the season.

Dries Mertens gave Napoli a 10th-minute lead before Ronaldo provided a perfect cross for Mario Mandzukic to head the equaliser after 26 minutes.

Mandzukic struck again four minutes after halftime, turning in a rebound after Ronaldo hit the post, and defender Leonardo Bonucci turned a Ronaldo header into the net in the 76th minute to complete the win

Napoli was down to 10 men by then after Mario Rui was sent off for a second bookable offence. Leaders Juventus, aiming for an eighth title in a row, have 21 points from seven games, six clear of second-placed Napoli, last season's runners-up.