Published Thursday, 26 June 2014
There were scrappy scenes before Armagh and Cavan's game at the Athletic Grounds (© Presseye)
The players were all suspended following a pre-game brawl at their Ulster Championship clash against Cavan earlier this month.
Both counties were also fined €5,000 after the incident.
The ban being upheld means that the players will still miss out on Saturday night's semi-final against Monaghan.
Mallon, Donaghy and Toner can still make further pleas to the Disputes Resolution Authority.
But a Croke Park statement said that the discipline breaches had been proven.
Armagh are also likely to be without Caolan Rafferty for the Monaghan tie, after he suffered a suspected broken hand in training last week.
© UTV News