So who were the best and worst players on the pitch?
✔️ GOOD PERFORMANCE
Roberto Firmino: 8.6
He didn't get on the scoresheet himself but Firmino produced one of his best performances of the season and will count himself unlucky to be on the losing side.
His glorious through ball sent Mo Salah clear for the opening goal and he also set up the Egyptian's second, again playing an intelligent ball across the area, one which Salah lapped up.
He created three Big Chances in total in the contest and this is the type of display the Brazilian can produce when at his best.
Marcus Rashford: 8.1
United's best player on the day, the wide forward stretched the pitch and gave Liverpool's fragile back line all kinds of trouble running at pace with and without the ball.
His raking pass was too high for Milner, allowing Mason Greenwood to run through and finish well with his right foot, then Greenwood sent Rashford clear, and he held his nerve to slide past Alisson. Some of his decision making still lacks a little bit of nuance, but this was a better display in front of goal.
❌ BAD PERFORMANCE
Donny van de Beek: 5.5
He's not getting many starts is the Dutchman, and in the minutes he is getting, he isn't showing enough to deserve a start in the team.
With the pace of Rashford and Greenwood on the flanks, United's game - which worked effectively - was to pick out the runners, largely leaving Donny out of the equation.
He managed just 24 touches, 19 of which were passes on a pass completion of 74%. It is not a performance that will live long in the memory, and he was subbed after 66 minutes.
Rhys Williams: 5.3
It has been a bit of a baptism of fire for the young defender who has been forced to play despite maybe not being ready for the first team.
This wasn't an outing to remember, as he struggled to deal with the pace at which United's forwards ran at him, and his error, misjudging the through ball, allowed Rashford to pounce and score.
⭐ STAR MAN
Mo Salah: 8.6
After a particular barren run by the Egyptian's standards, Salah's finishing and all-round play was far better here.
To open the scoring he ran through onto an excellent Roberto Firmino pass and as Dead Henderson tried to make himself big, he expertly dinked the ball over his frame and into the net.
And he was on the spot in the second half too, sweeping onto a Firmino pass left by James Milner to whip under the body of Henderson. Unlucky to be on the losing side, but on a personal level will be pleased to be back on the goal hunt.