Alfie Mawson says he and his defensive colleagues are determined to tighten up at the back.
The Reds have gone 21 games without keeping out the opposition with their last clean sheet coming in the September win over Gillingham. It's something Mawson, 21, says they are working hard at.
Mawson told the Chronicle: "It's got to be addressed. I think it's annoying to be honest. We thought the Millwall game was a perfect one and we nearly had it bar a bit of misfortune.
"It's evading us at the moment but we've got to be solid, communicate with each other and I'm sure it will come. "The win is the most important thing but, if we can get the clean sheets, that's the cherry on top.
"The gaffer is massive on it and always has been. We know that we need to keep clean sheets. That's the bottom line of it because we can't keep expecting the centre-forwards to score the goals.
"Because we're a possession-based side and we keep the ball a lot, we might switch off. That's our responsibility and we're not hiding away from that. We are working on it."
Mawson has recently lost the captain's armband to Conor Hourihane. He says it has not had an impact on his performances. He said: "It might be a little bit of a subconscious thing in the back of your mind that a little bit of pressure has been relieved. I still feel that I have to act like the captain and there should be 11 captains out there.
"Maybe you get to concentrate on yourself a little bit more but I want to be a captain later on in my career regardless. I'm behind Conor. I think he's a great player. I've got a lot of respect for him because he doesn't want to do anything but get better.
"I'm in the same frame of mind. I'm here to get better as a player and if that means taking on a lesser role with the captaincy then I feel free to do so. It's the gaffer's (Lee Johnson) decision and I'm 100 per cent behind him with everything he does. He's got a lot of faith in me and I've got a lot of faith in him."
