should go to Old Trafford on Wednesday without any fear. United are a huge club but they are a wounded animal under Jose Mourinho
The last time Arsenal won at United in the Premier League
was September 2006 but Old Trafford has lost the aura it once had. That daunting feeling for visitors has disappeared.
Arsenal are full of confidence after their win over Tottenham but Unai Emery is a manager with his finger on the pulse and won't let all the plaudits derail his side.
In the past, the praise the players are receiving might have gone to their heads. Emery will want to ensure this group don't get ahead of themselves.
There is no point going to Old Trafford and allowing all that good work to be thrown out of the window. You can't live off one win. You must build on it.
There was a good spirit against Tottenham. Arsenal's players played like street-fighters. They cannot lose that hunger or desire just because they are receiving pats on the back.
I am certain Emery will remind the team of their targets and emphasise that they have not actually achieved anything yet.
They are unbeaten in 19 games but Arsenal want to be in the top four and the Champions League.
Yes, they are producing fantastic football and they can beat United. I think the penny dropped for the fans and the players that they were on the right track when they faced Liverpool at the Emirates early last month.
Still, they must be careful. Mourinho will see this game against a top-four side as an ideal opportunity to answer his many critics.
Winning would not end all United's problems but it would get them going in the right direction — and Mourinho knows that.