AC Milan turned jeers to cheers on Sunday as two goals in stoppage time gave the seven-time European champions a stunning 3-2 win over Parma in Serie A. Trailing to what looked like being Enrico Delprato’s winner for Parma heading into added time, Milan triumphed thanks to strikes from Tijjani Reijnders and Samuel Chukwueze, sending previously frustrated fans delirious with joy. Milan move up to sixth, five points behind Lazio who sit fourth and host off-form Fiorentina in Sunday’s late match.

Nigeria forward Chukwueze’s bundled finish completely changed the atmosphere around the San Siro and gave Sergio Conceicao’s team a huge boost ahead of a massive week.

Milan travel to Dinamo Zagreb on Wednesday gunning for direct qualification for the last 16 of the Champions League before their local derby with Inter Milan next weekend.

“I think we showed the right mentality, fighting to the end and the way we changed this game is crazy,” said Netherlands midfielder Reijnders after his 11th goal of the season.

“This game was important for us to get back where we belong. Now we have to continue.”

Fan discontent had threatened to bubble over in the 80th minute when Delprato forced home on the rebound after Mike Maignan did brilliantly to keep out Drissa Camara.

Supporters turned towards the directors’ box and ironically applauded Milan’s management, after Milan’s hardcore ultras watched the majority of the match in silence, only raising their voices to again demand that American owners RedBird sell the club.

The loudest cheers heard from home fans before Reijnders’ 91st-minute equaliser, slotted home from Yunus Musah’s fine through ball, came moments before when Strahinja Pavlovic headed in what he thought was the leveller before it was rightly ruled out for offside.

Unfortunate Parma were left with nothing from an excellent performance which deserved more but meant Fabio Pecchia’s team stay a point above the relegation zone.

“When you play like that at the San Siro and you leave with a defeat there’s going to be disappointment but there’s also awareness of what we did because I saw a lot of good stuff today,” said Pecchia.

“A performance like that can only serve us well for the future.”

Inter are at Lecce on Sunday evening hoping to halve the six-point gap separating the champions from league leaders Napoli, with Roma at fellow mid-table outfit Udinese.

Romelu Lukaku made an immediate impact on his Napoli debut by netting the leveller which set up Saturday’s last-gasp 2-1 win over 10-man Parma, while AC Milan were held to an entertaining 2-2 draw at Lazio. Belgium striker Lukaku completed a permanent move to Napoli from Chelsea on Thursday, ending a long period of limbo with the Blues. And he helped save his new team from an embarrassing defeat against a Parma team who had to play nearly half an hour with a man down and an outfield player in goal.

Substitute Lukaku lashed home his first Napoli goal in the second of a whopping 15 minutes of stoppage time past Enrico Delprato, who went between the sticks following Zion Suzuki’s 76th-minute sending off.

Suzuki’s dismissal for a second booking came moments after coach Fabio Pecchia had made his last possible substitutions for Parma, who had taken a shock 19th-minute lead from the penalty spot through Ange-Yoan Bonny.

And Andre-Frank Zambo Anguissa thumped home the winning header four minutes after Lukaku’s equaliser to hand Napoli a dramatic second win from their first three matches.

Lukaku netted after being presented to home fans alongside Scott McTominay and Billy Gilmour to supporters before kick-off, all three signed in the days leading up to the match with Parma.

“It’s an honour to play for this team, these fans and the players who have welcomed me here so well. It’s been bit of a habit of mine over my career to score on my debut but at the end of the day we won, and that’s the most important thing,” Lukaku told DAZN.

Lukaku was brought in to replace Victor Osimhen who has been excluded from the Napoli squad after failing to find an exit from southern Italy.

Osimhen had been agitating for a move away from Napoli after the club descended into chaos almost immediately after claiming their third league crown last year.

But no club came close to both meeting Napoli’s valuation and satisfying Osimhen’s wage requirements, leaving the 25-year-old in a gilded cage as the club builds a new team for Antonio Conte.

Milan coach Paulo Fonseca dropped star players Rafael Leao and Theo Hernandez as he tried to shake things up following two deeply disappointing opening displays.

But both were brought on shortly after Lazio took the lead in the 66th minute following two quickfire tap-ins from Valentin Castellanos and Boulaye Dia which cancelled out Strahinja Pavlovic’s early opener.

And Leao almost immediately levelled the scores after combining with Hernandez and fellow substitute Tammy Abraham, who made his Milan debut less than a day after arriving on loan from Roma.

However Milan sit 14th on two points, hardly the start fans were hoping for after Fonseca replaced Stefano Pioli during the close season.