Realmadrid almost losed it but anyways they made it even though they had the chance to seal everything once again @70'min..but Vini missed it. Thus regarding the penalty kick, I didn't see a double kick, the media played it over and over for like 5 times and even slowed it , the only thing I saw was a slip and it almost hitted the ball it self , tbh I saw no DK... it is what it is... unto the next phase .I kinda love Simeone rage in the end though 
After a tough run in the semi-finals, madrid have shown their resilience once again by reaching the quarter-finals now, a victory in controversy clearly colouring their move yesterday when eliminating Atletico Madrid, although I personally wouldn't deny a double tap on the ball due to Alvarez slipping, but I wouldn't want to say that the pinalty alvarez was the reason for Atletico defeat, In my opinion their mistake was after scoring the first goal in the first minute which instead of looking for a second goal and continuing to increase the attack when madrid game was chaotic, but instead the Atletico players preferred to defend in the first half, but apart from that, of course the attitude shown by Simeone was extraordinary after his team lost, he even entered the field to shout and ask fans to keep encouraging their players who were sad.