United have a quick opportunity to bounce back with Chelsea visiting Old Trafford on Wednesday night.
And Maguire is clear about what is needed if the team are to improve on Saturday’s display and overcome Mauricio Pochettino’s side.
“We know we’ve got to do better, we’ve got to play better, the team’s got to perform better,” Maguire said. “We’ve got to play with a lot more intensity and tempo. We’ve got to win more duels – I feel that in the first half, we lost far too many duels; every 50-50 we got beat in.
“We’ve got to be aggressive, we’ve got to play on the front foot, we’ve got to play at a big tempo, and we just didn’t do that well enough tonight.”