Playing at barcelona home, they were able to surprise since the game just started, without taking long Atletico was to put mental pressure with quick goals through Alvarez and Griezmann, what was seen in the match in my opinion really showed the mentality of the two favourite teams to win this season both in the league and the Coppa Del Rey, two goals behind in less than 7 minutes in the match, precisely Barcelona was able to rise with extraordinary mentality for turn things around before the first half ended, with score 4-4 in first leg, I think the second leg later will be a tight match for them, because however with a draw in the first leg still keeps the chances of both teams to qualify for the final very large.
I wanted to say that it was unexpected to see Atletico concede so many goals, but they played against Barcelona, and for these guys this season there is no defense that they could not break through. And it is worth praising Atletico's attack, by the way, they are also very good, Semione finally managed to make Atletico also strong in the attack line, and not just famous for their defense.