Arsenal had only kept one clean sheet, conceded 28 times and leaked two or more in a game 10 times in the 15 games before Arteta’s appointment.

Since, as well as seven clean sheets and conceding only 12 times, they have only allowed their opposition to score twice or more in a single game on three occasions.

And Wilshere, now at West Ham, said in an Instagram Live on Tuesday: “They’ve got world-class players.

“They spent £60m on [Pierre-Emerick] Aubameyang, £40m on [Alexandre] Lacazette, [Mesut] Ozil is world-class.

“I think they’ve got a good manager now who can get the best out of them.

“Everyone who I’ve spoken to since leaving Arsenal or even when I was at Arsenal would say they wouldn’t mind playing against us because they knew they could get opportunities.

“Going forward we were always a joke.