What happened: PSG and Arsenal meet in Budapest at 6 p.m. for the Champions League final. Reports describe clashes between rival ultras in the city ahead of the match, with authorities tightening security. Paris is said to be preparing armoured glass as the buildup turns tense.

Why it matters: The final caps a long European campaign for both clubs, with PSG back in the final for a second straight year and Arsenal chasing a first continental crown. A title would reshape the standing of both sides in the European hierarchy. The off-pitch tension raises the stakes for organizers as much as the players.

What to watch: Watch for the security operation around the venue and confirmed team news as kickoff approaches at 6 p.m. in Budapest.