The veteran centre-back put in a brilliant performance against Man City.
Mikel says the Brazilian has responded well to his previous calamitous displays.
David Luiz is a leader both on and off the pitch, helping the team develop a winning mentality.
Arteta understands the defender needs to feel valued and trusted in order to deliver.
"This is a piece of football, you can go down yet I didn't have any questions about David's response," he stated, alluding to the defender slip-ups against City in the 3-0 misfortune in June, as cited by the Gunners' authentic site.
"He held his hands up after that game and he didn't need to do that since we as a whole commit errors. The manner in which he has been preparing and helping other people has been exceptional and I am pleased that individuals would now be able to see this side of him too and acclaim him since he merits it.
"He has won everything in various nations so he carries that [experience] with him. That as well as I need him to perform on the pitch and he is doing that again in a great manner and I'm extremely upbeat for him today.
"The most ideal approach to do that is to make him play. He can say that all through his vocation he has had some troublesome minutes and some staggering minutes, however huge competitors experience those minutes and I'm glad that he's at the level he's playing now."
Arms stockpile crushed Man City in the FA Cup semi-last, and the middle back didn't put a foot wrong. Along these lines, he demonstrated incredible attitude as he was to blame when the Gunners endured a substantial 3-0 thrashing at the Etihad Stadium in June.
Presently, be that as it may, the 33-year-old has recovered his past mix-ups as he delivered a champion exhibition at Wembley, winning everything noticeable all around and sparkling certainty with the ball at his feet.
Prior to the game, Pep Guardiola said that he 'chuckles' at each and every individual who pummels the ex-Chelsea man, and the Brazilian demonstrated the City lead trainer right – with a tragic impact to the ousted FA Cup holders.
Mikel Arteta changed Arsenal to a 3-4-3 shape so as to oblige the middle back, and the sudden triumph against City indeed demonstrated that David Luiz and the back three are a match made in paradise.
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