Julian Alvarez's penalty was disallowed in the Champions League round-of-16 shootout between Atletico Madrid and Real Madrid, leaving fans confused as to why.
Carlo Ancelotti's side advanced on penalties 4-2, but it wasn't without controversy.
Alvarez's penalty was chalked off, due to a 'double touch' - players are only allowed to take one touch when taking a penalty.
Having slipped, this is a very unfortunate case for Alvarez as Diego Simeone's side depart the Champions League in the harshest fashion.