It was a great first half for Arsenal, the defence did themselves proud in the face of Barca pressure and it would be wrong to pick on individual errors when you consider they were playing at the Nou Camp against Barcelona.
Joe Willock had a great first half but the same cannot be said of Granit Xhaka and the evidence has been there all pre-season that the youngster deserves to start alongside Lucas Torreira against Newcastle United and not the Swiss international.
Monreal stood out for me in defence, he made some timely tackles and was effective down the flanks when required.
Ainsley Maitland-Niles did very well, he just needs to work on his crossing. Mesut Ozil was another one that I thought had a great first half.
Pierre Emerick Aubameyang was on fire and his goal, assisted by Ozil, was a beauty.
Reiss Nelson was all over the field and while he did struggle to find a killer pass he was still effective.
Henrikh Mkhitaryan, alongside Xhaka was the most ineffectual first half performer and you have to think that he will not be a regular starter once the domestic campaign kicks off.
Overall, the first half was impressive and Arsenal being 1-0 up thanks to the Aubameyang screamer was not an injustice.
The second half started with Barcelona in complete control and was peppered with individual Arsenal mistakes in defence. Joe Willock made a hell of a clearance off the line in the 60th minute as Barca piled the pressure on.
Guendouzi has brought a calmness to his game, something that has been needed in the midfield when the defence is under so much pressure.
But it took an awful own goal from Maitland-Niles in the 68th minute to square things up.
I am not going to criticise the young lad, these things happen to even the best defenders in the game and if anything you have to question Bernd Leno, I mean, did he let Maitland-Niles know that he was steaming off his line?
Luis Suarez grabbed the winner with a last-minute volley and truth be told, it was always coming.
Overall, I think the lads can hold their heads up high despite the loss.