Inter Milan moved top of Serie A on Sunday after storming back from two goals down to snatch a 4-2 win over AC Milan in a pulsating derby at the San Siro.
Inter pulls level on 54 points with Juventus, who lost 2-1 at Hellas Verona on Saturday, but is ahead of the champions on goal difference thanks to a thrilling second half turnaround after Ante Rebic and Zlatan Ibrahimovic had put Milan 2-0 up at the break.
Lazio is just a point behind in third after Felipe Caicedo scored the only goal in a hard-fought win at Parma earlier on Sunday.
"It's a special night because in the first half we were in great difficulty like we hadn't been this season. There was the risk of taking a hammering," said Inter boss Antonio Conte.
"Credit to these lads because they were able to resist the blows which means that we are ready for something good.
"It's absolutely too early to talk about things that we can still dream of today."
Milan had dominated the first half with Inter struggling to deal with Ibrahimovic, who soared above Diego Godin before knocking down for Rebic to tap the opener past Daniele Padelli.
Stefan De Vrij blocked another cross to deny Rebic a second tap in but Franck Kessie flicked on for a waiting Ibrahimovic to turn in the second.
The comeback began five minutes after the break when Brozovic lashed home a stunning volley and two minutes later Mattias Vecino finshed off an Alexis Sanchez pass to level the scores.
De Vrij put Inter deservedly ahead with a superb diving header with 20 minutes to go, and after Ibrahimovic hit the post for Milan Romelu Lukaku then headed home substitute Victor Moses' cross three minutes into injury time to maintain Inter's charge for a first Serie A title in a decade.
Milan's collapse means they missed the chance to move into the Europa League places and sit 10th.
"It's difficult to explain. The first half was almost perfect, the second half the opposite." said Ibrahimovic.
"We conceded the first goal and the squad lost faith, then conceded a second and everything fell apart.
"Inter in the first half didn't look like a team who were second but then demonstrated why they were after the break."