Arsenal didn't do badly last season in the UEFA champions league they went on and on till the Semi Final and they were not knocked out by Bayern Munich in the Quarter final, rather they played against Real Madrid in the quarter final and won them well with quite a good margin 5-1 on aggregate. They then faced PSG in the semi final, they lost but they played well against them seriously.
Yeah, that’s the fact about Arsenal. They really did well in the Champions League last season; it’s just that the luck was not on their side. They could’ve won the Champions League. Anybody who tries to say that Arsenal’s performances were bad last season may be the person who didn’t watch the matches to know how the results that Arsenal gave out against every of their opponents.
I think Arsenal are really doing better now even though they are not fortunate enough to win trophies. I think they can actually challenge well as well but I don't really know about winning the trophy, if they are lucky they can win it it's not impossible. PSG also won it for the first time just last season.
The Arsenal manager has made a big move to make the team better this season. Their performance will differ greatly from last season, and that’s why we can see even right from the beginning of this season they began with a wonderful performance in their first match in the Premier League. This proves that they can do much better than how they did last season in this Champions League.