Marc Andre ter Stegen, who reached 150 clean sheets as a 'Cule', spoke after Barcelona's hard-fought win at San Mames against Athletic.
"I think they have all been very tough, but this one above all. It's known to be one of the most difficult pitches in La Liga. This victory gives us a lot," the German said on 'DAZN'.
On what the team had to work for, Ter Stegen said: "That's what counts in the end, holding on. We defended with everyone, even on the goal line. We have to win these games.
"I haven't seen the disallowed goal play, but that's what we have the VAR for. It's a decision he has to make. It's up to him to decide. We're very happy to keep another clean sheet," he concluded.