Errigal Ciaran will be without two first-choice attackers for Sunday's Ulster Club Football Championship semi-final against All-Ireland champions Crossmaglen.
Damien McDermott is suspended, while Caolan Tierney is on holiday.
McDermott received a straight red card in the Tyrone side's quarter-final win over Ballinderry, and manager Ronan McGuckin confirmed that Tierney is abroad, and will play no part in the Clones showdown.
"He's on holiday and he's not going to be available to us. Caolan agonised over it, it was something he had booked over a year ago, a three-week break," said McGuckin.
"I wasn't going to put a block in his way, and he has decided to go, with my full support, but it's a blow to the team obviously."