the only real surprise here is that this happened after 4-1 and it was done by Roma of all clubs. there was nothing surprising about tonight's performance though, because the result from the first game was down to pure luck to begin with.
current Iniesta, Gomes and Rakitic is midfield that is more suitable to Schalke or Fiorentina. none of them would be starting for United, let alone City. and if Messi isn't in his godlike form, Barca really can't do much. they didn't do much at Stamford Bridge as well, but luckily for them Christiansen gifted them an away goal. Roma weren't giving anything tonight and that was the main difference.
Valverde will win the league & cup purely because of one player, but he should be under great pressure now, not because of this loss, but because he had the whole season and Barca still can't outplay anyone. when it comes to one-man teams, Barca is probably the worst case I've ever seen and it seems that isn't going to change.