Dusan Vlahovic and Lloyd Kelly scored in stoppage time to inspire a dramatic Juventus escape, as they secured a 4-4 draw at home to Borussia Dortmund in a Champions League opener where all eight goals came after the break.
The hosts trailed 4-2 when Vlahovic struck his second of the night in the fourth minute of stoppage time and Kelly completed the comeback two minutes later to earn a share of the points.
After a quiet first half, Dortmund found the breakthrough eight minutes after the restart as Karim Adeyemi rifled a precise shot into the far corner from just outside the box.
The hosts drew level in the 63rd minute through Kenan Yildiz, who collected the ball on the edge of the area, steadied himself and bent a superb shot into the far corner to ignite the Juventus fans.
The celebrations were short-lived, however, as Felix Nmecha restored Dortmund's advantage barely two minutes later with a crisp first-time finish from distance.
The game’s tempo showed no sign of slowing, and by the 68th minute Juventus were level once more, Vlahovic racing onto a perfectly weighted pass to slot past Dortmund keeper Gregor Kobel.
The frenzy continued in the 74th minute, when Yan Couto’s low strike squirmed between Juventus keeper Michele Di Gregorio and the post to put Dortmund back in front.
The visitors were awarded a penalty four minutes from time, after Kelly was penalised for handball with Ramy Bensebaini converting from the spot.
Deep into stoppage time, Vlahovic struck again from a well-placed cross before turning provider for Kelly, who headed in the equaliser to cap a second half to remember.
Kylian Mbappe converted two penalties to secure Real Madrid a 2-1 victory over Olympique de Marseille despite playing the final stages with 10 men after captain Dani Carvajal was sent off.
Timothy Weah capitalised on a schoolboy mistake by Arda Guller to put the French visitors ahead in the 22nd minute before Mbappe levelled after Rodrygo was clumsily tripped by Geoffrey Kondogbia.
The drama reached fever pitch in the 72nd minute when Carvajal lost his temper and was sent off for head-butting rival goalkeeper Geronimo Rulli, leaving the record 15-times European champions facing an uphill battle.
Mbappe had the final say, however, converting his second penalty after a controversial handball by Facundo Medina to complete Madrid's comeback.
Benfica let slip an early two-goal lead to lose 3-2 at home to Qarabag, with Oleksiy Kashchuk netting the Azerbaijani side's winner four minutes from time.
The hosts looked in control when Enzo Barrenechea put them ahead in the sixth minute with a glancing header from a corner and Vangelis Pavlidis shot on the turn to double the lead 10 minutes later.
Leandro Andrade smashed a first-time shot past keeper Anatoliy Trubin, however, and Qarabag came close to drawing level when Kady Borges hit the post and Trubin made an excellent save from Marko Jankovic's follow-up effort.
Qarabag were level three minutes after the interval when Camilo Duran ran on to a defence-splitting pass from Marko Jankovic and smacked a first-time shot into the far corner but the visitors were not done yet.
A long punt forward from the Qarabag keeper found Kashchuk just outside the area and he played a one-two with Abdellah Zoubir before stroking a shot past Trubin to stun the Estadio da Luz.
Belgium's Union Saint-Gilloise made a dream debut in the Champions League group phase by stunning hosts PSV Eindhoven 3-1 in a feisty derby against their Dutch counterparts.
Union, who won the Belgian title for the first time in 90 years last season, earned their first points as Promise David converted an early penalty and Anouar Ait El Hadj ran half the length of the pitch to add a second before the interval.
Defender Kevin Mac Allister bundled home the third 10 minutes from time, forcing the ball over the line with his knees from a corner, to complete a shock result.
PSV grabbed a last-minute consolation through new signing Ruben van Bommel but it failed to put any gloss on a miserable night for the Dutch champions.
