Arsenal's Gabriel blazed his penalty over the crossbar to give PSG a 4-3 victory on spot-kicks, with Eberechi Eze also missing for the Gunners before David Raya saved from Nuno Mendes to keep the scores level.

Lucas Beraldo scored PSG's fifth and final penalty, piling the pressure on Gabriel to score Arsenal's fifth, and it proved too much for the Brazil defender, who lifted his effort over the bar to hand PSG the win.

The French champion made the worst possible start after Kai Havertz fired Arsenal into the lead in the sixth minute, lashing a rising shot past PSG goalkeeper Matvey Safonov.

It looked like PSG would find no way through the meanest defence in Europe but Ousmane Dembele levelled from the penalty spot in the 65th minute after a foul by Cristhian Mosquera on Khvicha Kvaratskhelia.

A scrappy period of extra-time could not separate the sides but PSG held its nerve in the shootout to become the second club in the UEFA Champions League era to win the trophy in successive seasons.

"We are so, so proud tonight, so happy, so grateful as also," PSG midfielder Desire Doue said after the match.

"It was a tough game against a very good team. We have to congratulate [Arsenal] because they had a very good season but now we just have to enjoy as a team, as a family because I think we deserve it.

PSG coach Luis Enrique also praised Arsenal in the moments after his side's win.

"It's stronger than last year because we knew before the match just how difficult it would be to play against Arsenal," he said.

"As a club and a city, it's incredible to win, and I think we deserved it over the course of the season. The final was a real battle."

Eleven days after celebrating its first Premier League title in 22 years, Arsenal looked set for a maiden triumph on Europe's biggest stage after Havertz’s sixth-minute opener and a first hour spent smothering PSG’s vaunted attack.

However, the final became chaotic once PSG's Dembele equalised from the spot, the pace turning frantic before exhaustion took the match to a shootout.

Under Luis Enrique, PSG has won all six of the shootouts ithas contested.

After brushing aside Premier League opposition on its way to the final by eliminating Chelsea and Liverpool, PSG was facing a much sterner test against an Arsenal team playing its second UEFA Champions League final after losing to Barcelona in 2006.

Mikel Arteta's side took the lead when Marquinhos's clearance bounced off Arsenal's Leandro Trossard into the path of Havertz, who raced into the box and fired into the roof of the net to become the fourth player to score in two different European Cup or UEFA Champions League finals with two different clubs.

It was the nightmare scenario for PSG, trailing after six minutes against the best defence in the competition.

Arsenal lived up to its reputation as the best team without the ball and looked perfectly content with the script, doubling up on Khvicha Kvaratskhelia and suffocating the usual danger brought by the Georgian magician on the left flank.

PSG's Fabian Ruiz was unable to impose his usual rhythm in midfield and, despite monopolising possession for long spells, Luis Enrique’s side struggled to carve out clear-cut chances.

By half-time, PSG had attacked 32 times, Arsenal three times.

Arsenal, however, was flirting with the boundaries with its challenges and Cristhian Mosquera brought down Kvaratskhelia in the area, with Dembele converting the penalty to level with his eighth goal in the competition.

The momentum shifted from that point.

Jurrien Timber and Viktor Gyokeres replaced Mosquera and Martin Odegaard and Arsenal had a more attacking mindset but was exposed to PSG's counter-attacks and at the end of one of them, Kvaratskhelia sped into the box, only for his left-footed effort to crash onto the outside of Raya's post.

After controlling the tempo in the first half, Arsenal played into PSG's hands as the pace increased significantly, giving too much space to Kvaratskhelia or Bradley Barcola, who replaced the Georgian winger with seven minutes left.

In the 89th minute, PSG came close to giving the final an abrupt end as Vitinha's attempt went just over, grazing the top of the net.

Barcola also shot over the bar after a counter-attack with what would have been the last kick of the game.

With both teams having run out of steam, extra-time was a cautious affair and when referee Daniel Siebert blew his whistle Arsenal had only managed one shot on target.

Gabriel was left to try and score the 10th penalty of the shootout and keep Arsenal's hopes alive but, facing PSG's end, he fired overand the French side was left to celebrate being European champion once again.