Football: 'Extraordinary' Ronaldo helps Juventus stretch perfect start with Napoli win

Mario Mandzukic scored in either half as Juventus came from behind to beat ten-man Napoli 3-1 and open up a six-point lead on Carlo Ancelotti's side at the top of the Serie A table.

Portuguese superstar Cristiano Ronaldo played a role in all three goals as Massimiliano Allegri's side have a maximum 21 points after seven games.

Napoli are now on 15 points, after falling to their