True, it was not a surprise even though Barcelona had to suffer the embarrassment of losing by a big score. I didn't think the match would be flooded with goals with a total of 8 goals nested between the two teams, but that's the reality.
In that match, Xavi and Arteta tested some of their new players. But Barcelona, who took the lead first, were always matched by Arsenal, until the two of them closed the first half with a score of 2-2. Arsenal led the second half with a 4-2 lead until Ferran Torres managed to reduce the deficit to 4-3, but unfortunately Barcelona had to concede another goal a minute later as well as Arsenal's winning goal to make it 5-3.
in these games you have to do tests, otherwise when. In fact, it makes a lot of sense in friendly matches to experiment or let young players play. They don't count for points and cup progress, so it's totally plausible.
of course is my opinion about this