
Pierre-Emerick Aubameyang looked to have teed himself and the Gunners up for the new Premier League season in style with a fine first-half goal but Barcelona pressed in search of an error that eventually arrived when Maitland-Niles put through his own net.
It was a cruel moment for the 21-year-old in front of a huge Camp Nou crowd and Arsenal boss Unai Emery could have done without having his defender’s confidence dented with a Premier League season opener against Newcastle United just six days away.
There were positives for Emery to take from the game, not least the return to action of Mesut Ozil and Sead Kolasinac after they were caught up in an apparent carjacking attempt, but Barcelona boss Ernesto Valverde will have been the happier coach at the final whistle after seeing Suarez fire a late winner.
The Blaugrauna dominated for long spells, with the midfield trio of Frenkie de Jong, Ivan Rakitic and Riqui Puig implementing Valverde’s possession-based style impeccably in the absence of Lionel Messi, and the Spanish champions’ patience paid off.