Antonio Conte's side have taken only one point from a possible six in their last two games and Lazio – who beat Atalanta 2-0 – have taken advantage to close the gap.

Defending champions Juventus took the lead at Parma through an Andrea Pirlo free kick deflected in by Jonathan Biabiany and which the hosts believed should not have been awarded in the first place.

Juve midfielder Simone Padoin went down in a heap outside the area but replays suggested no contact had been made by a Parma player.

Nicola Sansone levelled for Roberto Donadoni's side to maintain the only unbeaten home record in Serie A.