Arsenal’s dominance on set pieces makes this one of the most unique Champions League finals in history. It doesn’t negate the other aspects of the match, but the ability to effectively dunk the ball into the goal is an unprecedented advantage.

Not because dead balls have never mattered in finals. They have. Corners, free kicks, and second balls have changed European finals before.

That is what separates Arsenal from most of the teams PSG have already faced.

PSG have played elite opponents in this Champions League run: Barcelona, Bayern, Liverpool, Chelsea, Newcastle, Tottenham, Monaco, Bayer Leverkusen, Atalanta, Athletic Club, and Sporting CP.

Bayern Munich was a good warmup. They were not just an elite team; they were an elite set-piece team, with 7.02 set-piece xG in the Champions League and 22 set-piece goals in the Bundesliga.

But Arsenal’s corner threat is still different.

Over the last three Premier League seasons, Arsenal have scored 60 goals from corners. Tottenham are next with 49. Liverpool are further back on 39.

So this is not just one good set-piece season. It is a three-year identity.

As a hypothetical, say set pieces were not part of football.

In that world, if I had to compare this match to another Champions League final, I would compare it to Barcelona versus Manchester United in 2011.

That Manchester United team looked unshakable. They won the Premier League and lost only four league matches all season. They had experience, confidence, structure, and enough attacking quality to make the final feel competitive.

Barcelona were Barcelona, but going into the match, it still felt like United had a real chance to equal them.

Then the game started. It was not even.

Wayne Rooney scored, but Messi, Xavi, Iniesta, Pedro, and David Villa outclassed United technically and tactically. Barcelona’s passing was cleaner. Their midfield control was sharper. Their movement between the lines was more coordinated. Their combinations were quicker. Their defensive structure was sound enough to stop United from turning the match into something chaotic.

The only way to understand what it felt like to play that Barcelona team was to actually play that Barcelona team.

You could study the passing patterns. You could train against rondos. You could talk about triangles, third-man runs, counter-pressing, and positional play. But none of that was the same as being trapped inside the real thing.

That is where Arsenal’s set pieces create a similar problem.

This is not to say Arsenal can’t outclass PSG in open play. The point is that Arsenal have a weapon that is difficult to simulate because it depends on timing, repetition, physicality, delivery, disguise, and a knowledge of how to work within the rules.

The only way to gain experience playing against a team like Arsenal is to play Arsenal.

It is a volume issue.

You can practice defending corners. You can crowd the goalkeeper in training with coaching staff holding pads. You can work on holding a high line from free kicks. You can drill first contact, second contact, blocking runs, body positioning, and clearing zones.

But practicing the idea of Arsenal is not the same as facing Arsenal in a live match.

It is easier to predict what will happen in open play. PSG will want to control the ball, stretch Arsenal, combine through midfield, and create chances through movement. Arsenal will have to defend compactly, choose their pressing moments, and find ways to hurt PSG in transition and through structured attacks.

But one or two dead balls can turn the entire match on its head. That hasn’t been the case in past finals.

Arsenal’s set pieces are not one routine. The delivery changes but remains pinpoint accurate. The blockers change. The starting positions change. The target changes. Sometimes the goal is the first header. Sometimes it is the second ball. Sometimes it is simply to pin the goalkeeper and force defenders to make decisions while bodies are moving across them.

Pep Guardiola’s Barcelona had short passing, triangles, quick combinations, rotations, and coordinated movement that were unique to them.

Barcelona’s superiority in 2011 was constant. It showed up in every possession. Every pass made United run. Every rotation created another problem. Every spell of Barcelona control drained more life from the match.

Arsenal’s advantage is more episodic. It arrives in bursts. A corner. A free kick. A second ball. A goalkeeper pinned on his line. A defender caught between watching the ball and wrestling with his marker.

Other teams tried to copy Barcelona, and it took teams years to replicate their style of play. Other teams are still trying to copy Arsenal.

The caveat is the referee.

Champions League matches are not always refereed like Premier League matches. Holding, blocking, grappling, and contact with the goalkeeper can be treated differently. What is allowed in England may not be allowed in a European final. Arsenal’s set-piece edge exists partly in that grey area.

That is why an edge from open play, like Barcelona’s tiki-taka, will always have a longer shelf life than an edge from dead balls. Barcelona did not have to rely on how lenient a referee was willing to be. Arsenal’s advantage is real today, but more fragile in the long-term.

Set pieces may not decide the final but very few Champions League finalists enter the biggest match in club football with a single weapon this obvious, this feared, and this central to how opponents prepare for them.

This will mark the start of a new era in football, whether Arsenal win or not because winning the Premier League and getting to a Champions League final is a proof of concept.