How the UEFA Youth League worksArsenal U19s return to the UEFA Youth League for the 2025/26 season, facing six group stage matches mirroring the senior team’s Champions League fixtures. Their best previous run reached the 2013/14 quarter-finals. Opponents include Bayern Munich, Atletico Madrid, and Olympiacos. The top 22 teams advance to the knockout stage, joined by Domestic Champions path qualifiers.