Euro 2020 opening marks return of mega-scale sports events

Italian tenor Andrea Bocelli performs prior to the Euro 2020, soccer championship group A match between Italy and Turkey, at the Rome Olympic stadium, Friday, June 11, 2021. (AP Photo/Andrew Medichini, Pool)

Artists perform prior to the Euro 2020, soccer championship group A match between Italy and Turkey, at the Rome Olympic stadium, Friday, June 11, 2021. (AP Photo/Alessandra Tarantino, Pool)

General view of the stadium during the opening ceremony prior to the Euro 2020 soccer championship group A match between Turkey and Italy at the Rome Olympic stadium, Friday, June 11, 2021. (AP Photo/Andrew Medichini, Pool)

Turkish supporters play with a soccer ball in Rome's Piazza del Popolo hours before the start of the Euro 2020 soccer championship group A match between Italy and Turkey, at the Rome Olympic stadium Friday, June 11, 2021. Postponed by a year, the biggest sports event since the coronavirus brought the world to a halt kicks off Friday at Rome’s Stadio Olimpico, a milestone both for Europe and global sports. (AP Photo/Riccardo De Luca)

Italian fans celebrate as they watch the Euro 2020, soccer championship group A match between Italy and Turkey, on a mega screen set in downtown Rome, Friday, June 11, 2021. (Cecilia Fabiano/LaPresse via AP)

Italian fans celebrate as they watch the Euro 2020, soccer championship group A match between Italy and Turkey, on a mega screen set in downtown Rome, Friday, June 11, 2021. (Cecilia Fabiano/LaPresse via AP)

Italian tenor Andrea Bocelli performs prior to the Euro 2020, soccer championship group A match between Italy and Turkey, at the Rome Olympic stadium, Friday, June 11, 2021. (AP Photo/Alessandra Tarantino, Pool)

Fans take selfies with their phone before the Euro 2020 soccer championship group A match between Turkey and Italy at the Olympic stadium in Rome, Friday, June 11, 2021. (Ettore Ferrari/Pool via AP)

Italian fans watch the Euro 2020, soccer championship group A match between Italy and Turkey, on a mega screen set in downtown Rome, Friday, June 11, 2021. (Cecilia Fabiano/LaPresse via AP)