David Moyes was delighted with United's response to the defeat at Manchester City as Liverpool were overcome in the third round of the Capital One Cup.
The Reds set up a home date with Norwich City next month with a 1-0 victory over the Merseysiders to avenge the loss by the same scoreline at Anfield earlier in the campaign.
It was particularly pleasing that some of the players who have not had too much chance to impress during the early weeks of the season were able to contribute to the victory that was secured by Javier Hernandez's 46th-minute winner.
"It was a big game for us," admitted Moyes. "We lost at Anfield a few weeks ago and at the Etihad last week, so we wanted to put that right. Every game everyone says about me, it's the first at something or a monkey off my back or something else. It's going to be the way. I thought it was a really good game - an exciting game of football between the two teams.
"If you look at the first game [between us] and this game, they were both won by set-pieces and there was not an awful lot in the games. Obviously I made a lot of changes tonight as well and made sure we used the squad and it was good to see some of them get some playing time.
"It was certainly not a risk with the players I have got at Manchester United. All are international players and all of them are first-team players.