FILE - Bayern Munich fans arrive to the Allianz Arena prior to the Champions League semifinal first leg soccer match between Bayern Munich and Real Madrid at the Allianz Arena in Munich , Germany, Tuesday, April 30, 2024. The unpredictability of the European Championship, which kicks off in Munich on Friday, is what makes it such compelling viewing. Even in its expanded format of 24 teams, there is always the potential for a surprise. (AP Photo/Matthias Schrader, File)