United's Jack King has stated Saturday's performance against Peterborough wasn't of the standard which he and his fellow Iron team-mates expect from themselves.
Vice-Captain King did though insist the team will be striving to put things right, when they face Leyton Orient in next weekend's FA Cup second round clash.
"Obviously not good enough. I don't think there's been many times this season where we've let ourselves down like we have today," he told The Iron PlayerHD.
"We were off it right from the word go, and we got what we deserved in the end."
King reiterated no one at the club has fear of any side in League One, but he admitted the displays must be better if the Iron are to get better results in future games.
"We don't fear anyone in this league, but when you don't perform, like we did today, you know you're going to get rolled over," he said.
"I thought we started pretty brightly, but I think the turning point was probably the first goal."
Looking ahead to Saturday's encounter with The O's, the former Preston man says the FA Cup is a competition which United will be looking to go far and give a good account of themselves in.
He stated: "Of course you want a game straight away, and it's a cup competition you want to do well in"
"We'll be focusing fully from Monday onwards and we'll turn our attentions to that. But at the moment this is a tough one to take."
See much more from Jack King, Mark Robins and Luke Williams on The Iron PlayerHD.