Gabriel’s well-taken strike and an immaculate Jim Thwaites free-kick had Darren Fletcher’s side in a comfortable position at the break.
But City halved the deficit at the beginning of the second period through Tyrone Samba, before quickfire efforts from Floyd Samba and Harrison Miles put the visitors into the lead.
The Reds’ misery was compounded late on, when goalkeeper Fred Heath was sent off for a challenge on Teddie Lamb outside the box, with Floyd Samba converting the resulting set-piece past Heath's replacement Zac Watson.
FIRST HALF
United began the game with a 100 per cent winning record this term and started the stronger of the sides, as Samuel Lusale fired over following good work by captain Amir Ibragimov.