They kept the opposition scoreless in six of seven Premier League games.
Venezuela's Jose Salomon Rondon put the hosts in the lead in the 18th minute, just three minutes before Northern Irishman Jonny Evans scored the second goal.
We are only a few weeks into the season, and the only team that has been able to match our goal production is Manchester City.
The FC crew assess whether Manchester United have actually improved or are benefiting from a favourable run of fixtures.
"Romelu Lukaku underwent an MRI scan but no fracture or structural damage has been diagnosed".
In fact, before their thumping 5-0 win over Klopp's side in September, Man City had failed to beat Liverpool in the league in their last five meetings, with Liverpool winning four of those.
United have been more creative than previous year, striking a good balance with Nemanja Matic's presence allowing Paul Pogba to roam more, and for Henrikh Mkhitaryan to find space off the ball.
"(Marcus) Rashford's playing, (Henrikh) Mkhitaryan's playing more in his own role. The Reds will be desperate to make a statement against the Red Devils.
Not only can he defend the midfield, but he has been known to assist the offense as well.
The fact that Rashford is keeping Anthony Martial on the bench for the most part is a great sign for England as well as United, but the option to bring Martial on makes United's left flank one of the most risky entities in football.
Mourinho suggested that the 29-year-old was benefiting from his management more than he had done under his predecessors at Old Trafford. Now, those expectations are being met. Manchester United have looked very powerful going forwards.
He has great pace and foot skills that help United tremendously on the wing.
Herrera has felt more appreciated since Mourinho took over and when there was talk of a move to Barcelona in the summer to link up with his former Bilbao boss, Ernesto Valverde, it was quickly dismissed.
Fast forward to the beginning of the 2017/18 season and the club are already on their third permanent manager since Ferguson's departure following the dismissals of both David Moyes and Louis Van Gaal in 2014 and 2016 respectively. His style may not be as aesthetically pleasing as some of his United teammates, but Fellaini is the archetypal Mourinho player, in that he is prepared to carry out his manager's instructions without complaint and gets the job done. Jose Mourinho brought his pieces together so well early into the season. If Mourinho's squad continues to play to this level of excellence, there is no doubt that Manchester United can be significant title contenders.