It could all have been so different, which is why we might yet have different champions. Arsenal got through it. Not only these utterly gripping last 15 minutes at Tottenham Hotspur but also the three games that might have ended a supposedly jaded side’s title challenge. This run has instead propelled Mikel Arteta’s side, although a third successive victory played out in a way that no one could have foreseen.

It was an emotionally exhausting 3-2 in the north London derby that had earlier been an exhilarating 3-0. It might well serve them, although nobody was thinking so at the time. The relief at the final whistle was all too visible, Arteta’s staff immediately embracing, the players running over to the away end and jumping up and punching the air in a way that showcased a real release.

The Tottenham Hotspur sound system at that point upped the volume. They still had something to shout about themselves, having displayed immense resolve to come back into it when it all looked like it was falling apart. The problem is that taking heart from such a defeat won’t necessarily mean they overtake Aston Villa in the top four.

They are running out of time, which is pretty much what happened in this game. So much for Arsenal surprisingly cruising through this period in the way they had suggested after going up 3-0 following the 5-0 at Chelsea in midweek and that restorative 2-0 victory at Wolves. They were instead made to work for every bit. That at least ensures Manchester City will be made to work for this title. At the very least, it looks like the race will go the distance.

We might have a finish to match this game. Spurs will instead regret how they started. They’ll know they could have had more here, although it was a game that went in so many different directions. It is the one thing about this fixture: it really never disappoints. This is why there has never been a win by more than three goals in the Premier League era, although Arsenal did initially threaten that. This was the first time since January 1959 they had led by three at half time at Tottenham.

Even that had an element of illusion about it, one that played into how so much of this spell hadn’t gone as anticipated.

Ange Postecoglou had picked Pierre-Emile Hojbjerg specifically to compromise and have a counter to Arsenal’s breaks. The Dane only served to give away the opening goal heading into his own net from a corner after just 15 minutes. The defensive midfielder, both symbolically and significantly, did not impede Spurs’ impetus. They kept going for it, realising there were vulnerabilities in Arsenal, not least at set-pieces. Arteta’s backline repeatedly struggled to deal with Cristian Romero, one of whose efforts hit the post.

Just when Arsenal seemed to buckle, they were given a reprieve. A Micky van de Ven goal was ruled out for offside. A Dejan Kulusevski fall in the box was waved away. Arsenal went right up the other end and Bukayo Saka scored.

Spurs should have seen what was coming, not least in how Saka struck. The winger’s touch to take Kai Havertz’s ball down was divine and so distinctive, but what followed was something Postecoglou’s defence would have been forewarned. Seeing it and doing something about it, of course, are two very different things. Almost in the manner of Arjen Robben, with a note of Thierry Henry, Saka cut inside to his left and curled the ball around Guglielmo Vicario.

It looked so easy but wasn’t, a sense that only deepened when Arsenal scored again. It was another set piece. Havertz was left free at the near post to nod in Declan Rice’s corner, with Vicario far from dominant.

Spurs looked like they could collapse. It could have raised all manner of criticisms about Postecoglou’s approach and, while some of those remain, the second half did highlight its strengths. Spurs keep going. They don’t give in. They instead gave Arsenal real problems.

Some of that was self-inflicted. Arsenal were still so comfortable when David Raya casually played the ball straight to Romero. If it was unknown what the centre-half was still doing up there, he finished like a forward. The game meanwhile ended in barnstorming fashion. It was 3-1 but it was more than that. Every ball into the box caused anxiety, to the point that Rice tried to clear but only kicked Ben Davies. Michael Oliver was forced to go to VAR and a penalty was given. Son Heung-min made it 3-2, and then it really was more than that.

This was the title challenge, the run-in, all of it.

Arsenal got through it. Whatever happens next, it will do well to match the tension and mayhem of this.