Andy McFadden, 39, was diagnosed with terminal cancer after he went to the doctors with swelling to his face.
Following a series of tests, doctors discovered Andy had a tumour on his lungs which was causing swelling by putting pressure on his blood vessels.
He was also diagnosed with a form of bone cancer, which usually only occurs in older people, and he is now confined to a wheelchair.
Despite being a lifelong United fan, Andy has not been able to attend a game for 12 years.
Andy had told friends and family that one of his lifelong dreams is to attend a Manchester derby – and that wish is set to become a reality after Salford’s management team became aware of the online fundraising campaign through one of Andy’s former colleagues.
Speaking to Mirror Football, joint manager Anthony Johnson said: “Me and Bernard (Morley, fellow manager) were in the car on the way somewhere and we had a tweet through from Bern’s mother-in-law.
“It was an ex-colleague of hers and she asked if there was anything we could do.
“We clicked on the link and without wanting to sound too disparaging, it was only £750 for something that he really wanted to do, so it was a no brainer.
Johnson added: “We are lucky enough to be involved in football every single day.
“It’s a simple gesture, so we asked the players and staff and everyone said straight away that they would like to help.”
Andy’s daughter, Beth, responded to the gesture on Twitter and said: “Cannot believe how much people had helped in one day,nearly crying or how generous everyone is! Thank you every one who has shared/donated.”
The Class of 92 club are closing in on Football League
Andy’s family launched a crowdfunding appeal to raise money to get Andy a ticket to the match on April 27 at the Etihad Stadium.
The £750 target is for hospitality tickets, as normal match day tickets have sold out.
Luke Chadwick, Andy’s son, told the Manchester Evening News: “Andy, even though me and my eldest sister, Beth, call him dad is not our blood father.
“He met my mother in 2003 and took us on as his own and the bond we both have with him is nothing I could compare to.
“He is the most kind person I have met. Strict but a family man. I truly don’t think I would be the dad and person I am without him.”
A statement on Andy’s JustGiving page said: “We have been talking about going for years and with your help we can make it happen.
“Even the smallest donation will help but even if you cant just give this a share so we can reach out to more people.”
Andy previously worked at the Waterfold Farm pub, but became too ill to work following his diagnosis in November.