ROME: If AC Milan win their  first Serie A title in 11 years this season — and that's looking more and more like a distinct possibility — their last-gasp comeback victory at Lazio on Sunday might go down as one of the keys to success.

Sandro Tonali scored in stoppage time as Milan came back from a goal down for a 2-1 win that restored the Rossoneri’s position atop the Italian league table.

“This was another important step forward,” Milan coach Stefano Pioli said.

With four matches remaining, Milan moved two points ahead of city rival Inter Milan, which have a game in hand on their rival. Milan had put the pressure on with a 3-1 win over Roma on Saturday, and can reclaim the lead if they beat Bologna on Wednesday in a rescheduled match.

After a failed clearance from Francesco Acerbi, Tonali used his thigh to control a headed pass from Zlatan Ibrahimović, then poked the ball in — setting off wild celebrations among a large crowd of visiting fans at the Stadio Olimpico. In a display of determination, the play began when Ante Rebic stripped the ball from Lazio’s possession.

“It’s only right to be happy and satisfied with this game and our fans, who once again proved themselves fantastic,” Pioli said.

The victory extended Milan’s unbeaten streak to 12 matches and it marked the Rossoneri’s third win over Lazio this season, including the Italian Cup.

Lazio had taken an early lead when Ciro Immobile darted between two defenders and used one touch to redirect a cross from Sergej Milinković-Savić into the far corner.

The score made Immobile the fourth player in Europe’s top five leagues to score 25 or more goals in a single season at least three times since 2016-17 — Immobile’s first season at Lazio — after Cristiano Ronaldo, Lionel Messi and Robert Lewandowski.

Olivier Giroud’s equalizer after the break was similar to Immobile’s score. The France World Cup winner slid in to redirect a pass from Rafael Leão — also with one touch.

The loss hurt Lazio’s chances of securing a Europa League spot, leaving the Roman club two points behind city rival Roma, which are fifth.

Napoli’s hopes of a first Serie A title in more than three decades were virtually torn apart over an eight-minute span late in the second half at Empoli on Sunday.

Napoli conceded three straight goals — including one that was the product of a terrible error by goalkeeper Alex Meret — and squandered a two-goal advantage in a 3-2 defeat that extended its winless streak to three matches.

Third-place Napoli were left seven points behind Milan. Fourth-place Juventus can move within one point of Napoli with a win at Sassuolo on Monday.

Napoli stalwarts Dries Mertens and Lorenzo Insigne had put Napoli 2-0 up before the hour mark and the Partenopei looked confident entering the final 10 minutes.

That’s when the match turned.

Liam Henderson scored Empoli’s first in the 80th after Kévin Malcuit lost possession in midfield.

Meret then took too long to clear and when he finally did try to launch the ball away from his goal, Andrea Pinamonti was right on top of him and the ball ricocheted off the Empoli striker and into Meret’s net.

Finally, in the 88th, Pinamonti finished off a swift counterattack to earn 14th-place Empoli its first win since December.

It marked only the third time in Serie A history that a team won after trailing by two goals after 79 minutes.

“Clearly imagining an end to the game like that was difficult,” Napoli coach Luciano Spalletti said. “We made a few too many mistakes and lost the ball too easily.”

Diego Maradona led Napoli to their only Serie A titles in 1987 and 1990.

Having spent most of the season in last place, Salernitana are suddenly on a three-match winning streak — its first such run in its Serie A history — and putting up a fight to avoid relegation.

The southern club beat visiting Fiorentina 2-1 to move within three points of 17th-place Cagliari, which lost 1-0 to Genoa — another club in the drop zone.

Substitute Federico Bonazzoli scored the winner in the 79th after Milan Đurić had given Salernitana an early advantage. Riccardo Saponara had equalized for Fiorentina.

Also, 12th-place Udinese and 13th-place Bologna drew 2-2.