While I was not expecting to see Barcelona lose this match they lost and even after Yamal got injured he wanted to stay in the team.
Now it seems he is going to be absent in the important match they are going to have with Atletico Mardid, and this can make everything harder for Flick and his players because Atletico Madrid is going to be a much harder competitor for Barcelona than Leganés.

This will be a big disaster for Barcelona, considering that Lamine Yamal is still the backbone of the attack in the front line. Against Atletico Madrid will not be easy, especially since Atletico Madrid has never lost in the last 6 matches in La Liga. This will further motivate Diego Simeone troops to continue to extend their consistency + tickets to the top of the standings.