Goals from Iliam Ndiaye and Oli McBurnie in each half were enough to sink the Lilywhites, as they once again drew a blank at home.
North End sit 15th, with the Blades top of the table, after the game and this is how we rated them...
5. Brad Potts - 5
Not the best day for the right wing back, got through plenty of running as usual but little end product on the day, despite having little to work with in front of him. Photo: CameraSport - Rich Linley
6. Ben Whiteman - 5
Had a few efforts during the game, but was at fault for the United opener trying to turn on the edge of his box. Looked good in the first half as he helped PNE recycle the ball but fell away as did his teammates. Photo: CameraSport - Rich Linley
7. Alan Browne - 6
Was busy in the midfield and you can see the effort despite a general lack of form. Produced Preston’s best shot of the game, as he forced Foderingham into a great save late on. Photo: CameraSport - Rich Linley
8. Ali McCann - 5
Had a fantastic opportunity in the first half but couldn’t find the right pass to his teammates in the box. Showed good energy in the first half to help get PNE back on the attack. Photo: CameraSport - Rich Linley