Chelsea defender Andreas Christensen says the club must find a quick solution to their defensive struggles if they are to advance in the Champions League.
The London club lost 3-1 at home to Real Madrid in the quarter-final first leg match played on Wednesday night.
The Dane, in particular, had a night to forget as Vinicius Jr's pace and trickery were too much for him to handle, and was withdrawn at half-time as coach Thomas Tuchel made a tactical change.
Speaking after the match, Christensen pinpointed the recent goals the club has shipped as the primary source of concern.
"We weren’t at our top-level," he said.
"We started good for 10 or 15 minutes, good energy with the crowd behind us – and they stayed behind us the whole game – but they successfully took the tempo out of the game.
"We have conceded seven goals now in two games which is not normal for us. It’s not just about this game, we did it as well at the weekend. We have to fix it, and we have to do it quick,"
The Blues are however fortunate there is no away goal rule this season, giving them slim hopes ahead of next week.
"It’s two goals, it’s still going to be very difficult, but it can’t be worse than this. We have to go there and make a big performance,"
"We have to try and turn it around but it’s going to be difficult. We weren’t on top and we know that, but we have nothing to lose so we have to go there, put in a big performance and hopefully turn it around,"
Tuchel and company will now shift their attention to this weekend's Premier League match against Southampton.