Real Madrid chief Emilio Butragueno hit out at ref Alejandro Hernández Hernández after their 1-1 draw at Atletico Madrid.
Casemiro insists he was denied a goal by a hand-ball action from Atletico defender Felipe, which was rejected by Hernández Hernández and VAR.
Butragueno said: "It is clear that the ball hits the arm. From our point of view it is a penalty, but they are the professionals. We don't want to say much more. It's a shame.
"At the end of the first half it would have implied a draw and facing the second half in a different way. The VAR asks you to go. We believe that it is a penalty, the ball hits the hand. Make the decision you consider. We have not had luck with Hernández Hernández again."
