Real Madrid's Kylian Mbappé was the first person to alert the referees that Julián Alvarez's penalty should've been disallowed.

After Julián Álvarez’s controversial disallowed penalty during Atletico Madrid’s shootout against Real Madrid in the Champions League, UEFA has broken its silence on the matter. Real Madrid edged Atletico Madrid in the Champions League Round of 16 through a dramatic and contentious penalty shootout,

Real Madrid beat Atletico Madrid in a Champions League penalty shootout — again — to keep its title defense alive Wednesday and advance to the quarterfinals.