It's the first of two consecutive Old Trafford meetings, with Wolverhampton Wanderers visiting just days later, and the Reds are potentially heading into the clash with a reduced squad through injury and Africa Cup of Nations participation.
Nevertheless, Dorgu and his colleagues are ready for the challenge, and the Denmark international feels he knows exactly what to expect from the Magpies.
"I think they press very high," the wing-back stated in an interview with United Review, our official matchday programme, available online and at Old Trafford on Boxing Day.
"They're very aggressive as a team, they play very direct and they have a very good midfield to control the game, so I think it's always difficult to play against Newcastle.