Arteta's Arsenal fall to PSG in Champions League, face tough lessons

Arsenal were taught a valuable lesson in their Champions League final loss to PSG on Saturday, but will Mikel Arteta be brave enough to learn from it?

_Originally reported by [ESPN](https://www.espn.com/soccer/story/_/id/48922746/arsenal-hard-beat-biggest-tests-champions-league-final-find-hard-win)._