Napoli kept their Serie A title hopes alive in the most dramatic fashion in Turin on Sunday, Kalidou Koulibaly powering home a match-winning header in stoppage time against Juventus to move his side within one point of the Bianconeri.
It looked as though Juve were going to preserve their four-point advantage at the summit with four games to play and edge closer to a seventh successive Scudetto only for Koulibaly to throw the race wide open.
Compounding Juve's last-gasp defeat is the fact Massimiliano Allegri's men arguably have the tougher run-in of the two sides, with the Derby d'Italia away to Inter coming up next Saturday, and a clash with Champions League semi-finalists Roma awaiting in the penultimate round of fixtures.
Napoli, meanwhile, seeking to win a first Scudetto since 1989-90, when they were inspired to a second title in four seasons by the great Diego Maradona, visit Fiorentina next weekend hopeful of seizing on any further slip-ups from the leaders.
Napoli enjoyed an early sight of goal when Lorenzo Insigne fired wide in the first minute, and the passage of play proved costly for Juventus, as Giorgio Chiellini sustained an injury that ultimately forced him off 10 minutes later, having failed to convince in his attempts to shake off what appeared to be a muscle problem.
With full-back Stephan Lichtsteiner introduced and Benedikt Howedes shifting to centre-back, Juve went close for the first time in the 17th minute, Miralem Pjanic's deflected free-kick wrongfooting Pepe Reina and striking the far post, leaving the Napoli goalkeeper stranded.
His counterpart Gianluigi Buffon had to be alert to tip over a dipping cross-cum-shot from Mario Rui, who then slid in Marek Hamsik for the best chance of the first half in the 24th minute, only for the Napoli captain to drag his attempt across the face of goal and wide.
Insigne had the ball in the back of the net seven minutes before half-time, but Lichtsteiner smartly stepped up to catch his opponent offside.
Allegri responded to his team's underwhelming first-half showing by withdrawing Paulo Dybala in favour of Juan Cuadrado, while Maurizio Sarri introduced the fit-again and in-form Arkadiusz Milik a minute past the hour mark, taking off the relatively ineffectual Dries Mertens.
Substitute Piotr Zielinski tested Buffon from long range with seven minutes to go in what had been a tense second half, and the goalkeeper also had to claw away an awkward Jose Callejon delivery.
From the Spaniard's subsequent corner, Napoli grabbed the all-important goal, Koulibaly rising above the Juve backline to head home a powerful winner, the final whistle sparking wild celebrations among the visitors and ensuring a thrilling conclusion to the title race.
15. August 2018
|Braves´ Acuna Jr. has arrived as a true MLB star|
|LA Galaxy 2 Colorado Rapids 2: Jackson´s deflected strike sees spoils shared|
|Victory offer postponed retirement, says Honda|
|Kyrgios forgets tennis shoes, Federer back in business|
|Williams knocked out as Garcia and Pliskova advance in Ohio|
|Kvitova sees off Serena in Cincinnati classic|
|Federer dispatches Gojowczyk in Cincinnati|
|Stead succeeds Hesson as New Zealand coach|
|Duminy encouraged despite South Africa´s mixed results|
|Thiem withdraws from Cincinnati Masters|
|Edwards joins Ospreys in consultancy role|
|Former Arsenal and Barcelona player Song joins Sion|
14. August 2018
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|Roethlisberger evaluated for concussion after practice|
|Brady ´absolutely´ expects to face Eagles|
|Rugby Championship 2018: Reasons for optimism and concern for Australia|
|Wentz ´gonna be close´ for Eagles opener|
|Cleveland ´victory fridges´ to unlock beer if Browns finally win|
|England´s Watson suffers injury setback|
|Mariners reinstate Cano after 80-game suspension|
|AEK Athens 2 Celtic 1 (3-2 agg): Rodgers´ men dumped out of Champions League|
|Alonso to leave F1: Paddock reacts to Spaniard´s exit|
|Roma sign midfielder N´Zonzi from Sevilla|
|Alonso to leave F1: Who will replace Fernando at McLaren?|
|Extraordinary Zidane is in Real Madrid´s past - Lopetegui|
|Alonso to leave F1: Then and now - how the grid, teams and calendar have changed since 2001|
|Wawrinka and Azarenka receive US Open wildcards|
|Parma sign Napoli pair Inglese and Grassi on loan|
|Sandakan castles Proteas before Sri Lanka squeeze home|
|Ronaldo sale won´t stop Real Madrid winning - Ramos|
|Predators sign Ryan Ellis to eight-year, $50M contract|
|Curran, Woakes, Rashid - who makes way for Stokes in England´s Test XI?|
|Griezmann well positioned for Ballon d´Or, says Simeone|
|Criscito: I was on Genoa bridge shortly before collapse|
|Alonso to leave F1: How the Spaniard´s numbers stack up to the greats|
|Rookie LB Roquan Smith finally signs Bears contract|
|De Villiers enjoying relief from ´unbearable´ Proteas pressure|
|Fernando Alonso to leave F1|
|Spalletti extends Inter contract|
|Godin, Koke, Griezmann and Juanfran named Atletico Madrid captains|
|Ronaldo out of hospital after illness|
|Fury: Beating Wilder and Joshua ´very easy´|
|Dickinson retires to take up academy coaching role|
|Cricket the ´sole focus´ for Stokes as he returns to England squad|
|Cheryshev moves to Valencia on loan|
|Mandzukic retires from Croatia duty after World Cup|
|Ben Stokes found not guilty of affray|
|Tottenham issue new stadium update and apology to fans|
|Chelsea flop Bakayoko moves to AC Milan on loan|
|Gabi urges Al Sadd team-mate Xavi to play on|
|Ronaldo leads UEFA Goal of the Season nominees|
|Federer: Djokovic could be caught up in US Open pressure|
|Ronaldo to Juventus a huge boost for Serie A – Matthaus|
|Werner would welcome Ozil Germany return|
|´Perfectionist´ Serena admits to ´unrealistic´ expectations in tennis and motherhood|
|Klopp praises Deschamps and his ´boring´ France|
|LaLiga 2018-19: Bale or Griezmann - Who will step into Ronaldo´s breach as Messi´s main rival?|
|Woods winning 15th major would be greatest comeback in sport – Faldo|
|Retiring Storm great Hoffman not giving up on Finals dream|
|Folau won´t change aerial approach in All Blacks showdown|
|Racism behind Sterling criticism, says ex-Arsenal star Wright|
|Eto´o joins Qatar SC following Ligue 1 links|
|UEFA Super Cup 2018-19: Atletico academy eclipsing Madrid, La Masia|
|UEFA Super Cup 2018-19: Should Real Madrid cash in on Modric?|
|Scintillating Serena sends warning, Azarenka survives opener|
|DeGrom strikes out 12, Mets hit 5 homers in win over Yankees|
|Djokovic needs nine MPs as Murray crashes out|
|Murray unsure of US Open readiness after Cincinnati exit|
|Van Dijk: Alisson making difference at Liverpool|
|Johnson saves eight MPs but Djokovic prevails|