Two-time defending champions Juventus drew 1-1 at bitter rivals Inter Milan in an electric atmosphere at San Siro yesterday. Mauro Icardi scored his first goal for Inter to put the hosts ahead in the Serie A fixture known as Italy's derby.
However, Arturo Vidal levelled almost instantly for Juventus - as Inter conceded their first goal this season.
Carlos Tevez nearly put Juventus in front seconds later but fired wide, while Vidal went close to scoring a late winner in what was coach Antonio Conte's 100th match in charge of the Turin club.
Both teams lost their 100 per cent winning record and could be overtaken by Napoli when they hosted Atalanta late. Last season's runner-up were one of six teams to win both of their opening Serie A matches.
Inter had the first real scoring opportunity in the 13th minute and Juventus goalkeeper Gianluigi Buffon had to get down smartly to his right to keep out Yuto Nagatomo's volley.
Juventus could have had a penalty minutes later when Saphir Taider appeared to rugby tackle Vidal to the ground, but the assistant ruled the Chile midfielder handled first.
Paul Pogba went close to giving Juventus the lead on the half hour but he scuffed his shot and Inter goalkeeper Samir Handanovic was able to save comfortably.
Both sides could have scored early in the second half but Rodrigo Palacio headed Esteban Cambiasso's cross straight at Buffon before Vidal's angled drive whistled past the right post.
Inter took the lead in the 73rd minute when Ricky Alvarez robbed Giorgio Chiellini and burst forward before putting in a through ball for substitute Icardi to run on to and smash home - sending most of the 83,000 crowd into a frenzy. Icardi scored three goals against Juventus for Sampdoria last season.
However, Vidal levelled 80 seconds later, catching the Inter defence napping as he drilled Kwadwo Asamoah's cross into the bottom right corner.
Juventus almost took the lead moments later but Tevez fired just past the right upright.
The champions again went close two minutes from time and Handanovic did well to keep out Vidal's header from five yards following a Tevez cross.