PSG see off Arsenal on penalties to retain Champions League crown in Budapest
The first ever UCL final between a French and an English side saw the early breakthrough come from the team based north of the Channel, as the red and white half of the Puskás Aréna erupted with joy just six minutes in.
Marquinhos' clearance rebounded off Leandro Trossard and fortuitously sent Kai Havertz charging down the left flank, before the German cleverly lifted his finish into the roof of the net from a tight angle – his second opening goal in UCL finals.
Relying on a defence that had kept a joint-record nine UCL clean sheets up to that point, Arsenal aimed to hold firm and ensure a 12th consecutive final where the first goalscorers emerged victorious.
They largely contained PSG – the competition's top scorers – heading into the interval, with only a pair of off-target efforts from Fabián Ruiz and some muted penalty appeals for a potential Bukayo Sako handball to show for their first-half efforts.
A similar pattern continued after the restart, but the atmosphere shifted when Khvicha Kvaratskhelia was brought down by Cristhian Mosquera while bursting into the area, prompting referee Daniel Siebert to immediately point to the spot.
Flames were ignited behind the goal as Ballon D'Or recipient Ousmane Dembele slotted his penalty into the bottom-left corner, equalising with 25 minutes left on the clock.
Kvaratskhelia then signalled his desire to avoid extra time by breaking away and seeing his powerful strike deflected off Myles Lewis-Skelly onto the outside of the post, but even a frantic final five minutes, in which Vitinha sent an effort whistling onto the roof of the net, could not prevent an additional half-hour.
The first miss from the spot came when Eberechi Eze placed his shot wide, but David Raya made amends with a fine save to deny Mendes.
Yet with the scores level at 3-3 after four penalties apiece, Lucas Beraldo kept his cool to score, while Gabriel Magalhães sent his attempt agonisingly over the bar.
PSG recovered from a modest league-phase performance to dominate the knockout rounds and net a UCL-record 45 goals in the process, adding Luis Enrique to the prestigious list of managers to have won this competition three times.
It is more European heartache for Arsenal, who have now lost each of their last five finals in continental competition and remain the side with the most UCL appearances without ever winning it.