Doncaster Rovers chairman John Ryan believes Leeds United will be unsuccessful in their bid to have their 15-point deduction overturned.
Ryan told the BBC: "In my opinion they will fail. If they do succeed it would be an incredibly sad day for football.
"It would actually mean that promotion could be decided in a court of law."
If Leeds have all the points returned they would climb to second in the League One table and third-placed Doncaster would drop to fourth.
"I've never known anything like this happen," Ryan said.
Ryan is also concerned that a Leeds victory in the courts would set a dangerous precedent.
"What would happen next? Would Bournemouth, Luton, Rotherham - all the other teams that have lost 10 points, take on the Football League? I think it's a nonsense."
The tribunal hearing is scheduled to last until Friday but it is not known if the verdict will be announced before Leeds' trip to Millwall on Saturday.
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