Inter Milan's victory over Hellas Verona courtesy of Matteo Darmian's goal was worth "nine points", according to coach Antonio Conte, as the Nerazzurri closed in on the Serie A title.
Achraf Hakimi set up Italy defender Darmian to grab the winner on 76 minutes at the San Siro.
The win leaves Inter 11 points ahead of Atalanta, who moved second with a 5-0 rout of 10-man Bologna, with five games remaining.
AC Milan are a further two points behind in third before they travel to fellow top-four hopefuls Lazio on Monday.
"Today's victory is not worth only three points, not even six. It is worth nine," said Conte.
"We're 95 per cent of the way towards the scudetto. We haven't won it yet but we are close."
Juventus are level on points with AC Milan but drop to fourth place after being held 1-1 at Fiorentina.
With five games left to play, last season's runners-up Inter could claim their first Serie A title since 2010 as early as next weekend.
"For many players, this is the first time they find themselves in this situation," said Conte who led Inter to runners-up spot in his first season last year.
"It's been a long time since Inter have won anything," said the former Chelsea manager. "Sometimes we suffer but we need to keep our foot on the accelerator."
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Juventus forward Cristiano Ronaldo reacts to a decision by Italian referee Davide Massa during the Serie A match against Fiorentina at the Artemio-Franchi Stadium in Florence. AFP -
Juventus' Cristiano Ronaldo appeals for a foul. Reuters -
Juventus' Portuguese forward Cristiano Ronaldo reacts after missing a goal opportunity against Fiorentina's Polish goalkeeper Bartlomiej Dragowski. AFP -
Juventus' Cristiano Ronaldo under pressure from Fiorentina's Sofyan Amrabat. AFP -
Juventus' Cristiano Ronaldo reacts. Reuters -
Juventus' Cristiano Ronaldo looks dejected after missing a headed chance to give Juve the lead against Fiorentina. AFP
Pirlo 'not happy'
Juve's dreams of a 10th consecutive title slipped further after being held in Florence.
Dusan Vlahovic put 14th-placed Fiorentina ahead from the penalty spot after half an hour after Adrien Rabiot was penalised for a handball.
Vlahovic stepped up with a well-taken Panenka past Wojciech Szczesny for his 17th goal this campaign.
"We had a very bad first half, the match had to be tackled differently because this was a crucial game for the Champions League," said Juve coach Andrea Pirlo.
"The second half was a little better."
Pirlo sent on Dejan Kulusevski and Alvaro Morata after the interval in place of Leonardo Bonucci and Paulo Dybala.
And Spaniard Morata pulled a goal back immediately, curling in from a tight angle.
Cristiano Ronaldo missed a chance for the winner, nodding wide with six minutes to go, failing to score for the third consecutive game.
Juve risk slipping out of the top four, with Napoli just three points behind before visiting lowly Torino on Monday.
Former World Cup winner Pirlo conceded he was not satisfied after his first season in charge at his former club.
"The expectations were different at the beginning of the season," said Pirlo.
"I don't think I did the job as I wanted. You learn with every match. I'm not happy and I don't think the club is either."
Muriel inspires Atalanta
In Bergamo, Atalanta kept their push for Champions League football on track with an impressive display from striker Luis Muriel.
The Colombian's back-heel flick set up Ruslan Malinovskyi for the opener on 22 minutes, adding a second himself from the penalty spot just before the break for his 19th goal this campaign.
Jerdy Schouten's sending off four minutes after half-time for a dangerous tackle on Cristian Romero complicated the task even further for 12th-placed Bologna.
And Remo Freuler added a third on 57 minutes, with Malinovskyi setting up Duvan Zapata for the fourth before the hour. Substitute Aleksei Miranchuk completed the rout with 17 minutes to go.
Seventh-placed Roma lost 3-2 at Cagliari before their Europa League trip to Manchester United, as the Sardinians, now 17th, boosted their hopes of top-flight survival.
