The adapted Nations League format is preferred by leading football nations, as it aims to create more competitive matches and enhance viewer engagement, addressing concerns about the current qualifying system's appeal.
Bayern went straight onto the front foot, with Upamecano seeing an effort deflected behind and Díaz drawing a fine save from keeper Mark Flekken. Kane and Laimer saw efforts saved, but Munich took the lead when Musiala's cross found Kane, who smashed into the roof of the net.
Yamal won the penalty and promptly picked himself up and despatched the kick to make it 1-0 to Barcelona. However, instead of celebrating the opening goal, Yamal lay on the ground and was quickly surrounded by worried team-mates.
"For me, we were robbed," he told TNT Sports Brasil. "I don't want to talk about the refereeing, but we played extremely well, they committed I don't know how many fouls, and the referee didn't even pull out a single yellow card against them."