What a set of freaks.
TBH that was idiotic from Haaland, as was his throwing the ball at Gabriel. Other players such as Salah and Seamus Coleman have trolled Haaland on the pitch about it (including Coleman just before Haaland took and missed his penalty). It was just unnecessary and I'm sure Pep will have been privately angry with Haaland for it as it just brings added drama - notwithstanding the extra motivation (not that much would have been needed) it will give Arsenal at the Emirates. Why give your opponent even more motivation?