Armagh's whitewash in Division 2B of the Allianz Hurling League – they lost all five games – means they must face Fingal in a relegation shoot-out.
The Orchard County's latest setback came yesterday when they lost by 1-19 to 1-11 to a lively Mayo side that derived their inspiration from hot-shot Kenny Feeney, a late call-up in place of Kieran McDermott, who landed 12 points including seven frees.
It was a stunning solo show to which Armagh had no real answer although Declan Coulter plundered half-a-dozen points after Mattie Lennon had given the team the perfect start with a fourth-minute goal.
The dismissal of defender Nathan Greene left Armagh at a numerical disadvantage from the 25th minute, yet they managed to peg Mayo back to 0-11 to 1-7 by the 46th minute only for Feeney to take centre-stage.
He scored a further four points which was added to by an injury-time goal and point from impressive substitute Kevin Keena.
It got even worse for Armagh when Daniel Mone was dismissed just prior to the final whistle but by then there was no way back.
Meanwhile, Tyrone booked their place in the Division 3B final against Leitrim following yesterday's handsome 2-16 to 1-10 win over Sligo.
And Ulster will also be represented in the Division 3A decider in which Donegal will oppose Roscommon.
Donegal proved too strong for Louth, winning by 2-15 to 1-15, while in the same division Fermanagh accounted for Monaghan by 2-15 to 1-11.