Manchester United captain Nemanja Vidic feels they've improved their defending since the derby defeat.
United have not conceded since their thrashing by Manchester City.
"I think we have improved defensively," Vidic asserted to MUTV. "We defend as a team, all 11 players. Even Chicha and Welbeck up front - they play for the team and helped us to defend well and that's a big reason for us getting three points.
"We know we should have played better and created more chances, but this will come. We just have to find the balance and I'm sure we will get it."