'Only his last changes worked' - how Arteta's gambles finally paid off

Before we get into any tactical analysis of Arsenal's win over West Ham, we have to address the decision that saw the Hammers' stoppage-time equaliser ruled out.

Anyone who watches football regularly probably thinks the grappling we see at corners and set-plays has gone too far this season.

I think most people are up for punishing it more, because there does seem to be too many occasions where players get away with it.

For Callum Wilson's 95th-minute goal to be disallowed by the video assistant referee (VAR) because of exactly that kind of foul was ironic in many ways, because we've seen Mikel Arteta's side do that type of thing, unpunished, so often.

So, I know why only seeing the officials act now will frustrate a lot of people because it is Arsenal who have benefited, but in isolation it is the right decision.

David Raya was being prevented from lifting his arm upwards by Pablo, and he was also having his shirt pulled from behind by Jean-Clair Todibo to stop him getting off the ground.

In a way there were two fouls there, so although it was a brilliant finish from Wilson and also the kind of dramatic moment that all neutral fans love, the reality is that, fair's fair, that is a foul - whoever you support and wherever your allegiance lies.

It was the right decision, and it also wasn't the only reason that Arsenal won that game.

They got a bit of luck along the way, and there were also some big moments with Raya's save from Mateus Fernandes and Gabriel's block from Wilson, which led to that controversial corner, but the most credit has to go to Arteta.

The life of any manager is that you don't always get your decisions right.

But the mark of a good manager is if you try something and it's not working, then you take some risks - change it up and do something else.

Arteta did that. Three times against West Ham he made a decision with his substitutes and only the last changes he made came off, but that was what won him the game.

His boldness, combined with Arsenal's formidable squad strength that we have spoken about many times in the past few months, meant they could take another big step towards the Premier League title.

Biggest VAR call ever? Four chaotic minutes that may define the season

Arsenal the champions in waiting but doing it the hard way

West Ham have injury-time goal disallowed as Arsenal go five clear

Arsenal started Sunday's game with exactly the sort of intent they needed in a game they had to win.

They were pressing well, winning second balls, then passing forward and moving quickly.

I was watching the game for Match of the Day and straight away I thought they looked up for it. They were looking strong and created a few excellent early chances.

After that, though, West Ham grew into the game and the first change that Arteta made, bringing Martin Zubimendi on for the injured Ben White after 28 minutes, didn't work.

I can understand why Arteta tried that because, when White went off, Arsenal were dominating the game. West Ham's wing-backs were pinned back so Riccardo Calafiori and White were getting on the ball a lot, in the Hammers half.

Arteta probably thought Rice is so comfortable on the ball that he could leave him at right-back, and Zubimendi is so technically gifted, he is more than adequate to come into the middle of the park instead and dictate play.

That way, Rice could handle Crysencio Summerville athletically. And while he had another defender, Cristhian Mosquera, on the bench, Mosquera is much more of an out-and-out defender and Arteta wanted to stay on the front foot.

Of course it didn't play out that way. Arsenal lost a bit of momentum and West Ham had a couple of chances before the break - I guess it shows you how significant Rice is in the middle of the park.

So, Arteta changed it again at half-time, bringing Mosquera on at right-back, moving Myles Lewis-Skelly to left-back and taking off Calafiori.