Atletico Madrid manager Diego Simeone says the referees and VAR always favour Real Madrid at the Santiago Bernabeu.
Los Rojiblancos were reduced to ten men when Angel Correa was shown a straight red card for 'elbowing' Antonio Rudiger.
Atletico went on to take the lead through Jose Gimenez, but were pegged back by a late equaliser through 18-year-old Alvaro Rodriguez.
Read: Real's title hopes dented after Madrid Derby draw
Simeone took issue with the red card and seemingly accused Rudiger of acting.
"A contact is not a blow," Simeone told DAZN after the game. "Football is a physical game. If I'm not mistaken, Rudiger measures 1.94m and if it was apparently such a brutal blow, it would have left him sitting down, but he immediately gets up.
"It may be a yellow [card] but taking a player out for that, there would be no players left on the field.
"It's the same story. It is normal, and it has become normal [refereeing favouring Madrid] and that's not right and it would be nice if we could all compete in the same way."
"In the Copa del Rey, they could have sent off [Madrid's] Dani Ceballos for a foul that was a red," Simeone said. "Today, Angel's foul they saw it that way. You have all seen it, there are things that are very clear."
When asked about VAR, he added, "It can go either way, sometimes in your favour, sometimes against you.
"However, every time we come here [to the Bernabeu stadium], it goes against us."
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