Three of Tyrone's key attackers are battling against injury setbacks ahead of their All-Ireland SFC quarter-final on 4 August.
Gerard Cavlan, Brian Dooher and Stephen O'Neill have all been forced to withdraw from squad training, and are currently undergoing treatment.
Cavlan pulled up with a hamstring tear in the latter stages of the Ulster final win over Monaghan a week ago, but manager Mickey Harte is somewhat relieved that the damage is not overly serious.
'It's not a major tear. I suppose we talk about these things in terms of grade one, two and three, and it’s at the lesser end of the scale anyway, which is good.
'But it's still keeping him out of team training at the moment. He's doing individual work with the physio, so there's concern there,' said Harte.
Stephen O’Neill hasn’t started a championship game in the current campaign, but has made two brief substitute appearances.
He has been dogged by hamstring trouble since the early stages of the season, and subsequently developed tendonitis in a knee.
'Stevie is still battling with tendonitis in the knee, and wouldn’t be ready for full training yet either.'
And Harte revealed that skipper Brian Dooher carried a hamstring injury into the provincial decider, and is still troubled by the problem.
'Brian Dooher is having difficulty with a groin problem that he took into the game against Monaghan. That’s still giving him bother.'
He added: 'Colin Holmes isn't fit for full training yet either, with a foot injury.'
The Red Hands must prepare for the last eight eliminator on 4 August handicapped by the fact that they won’t know who their opponents will be until less than a week before the game.
An open draw for the quarter-finals will be held next Sunday evening, with the four Qualifiers pitted against the four provincial champions.
With Ulster final opponents Monaghan ruled out of the equation, Tyrone could face any of five other teams – Cork, Meath, Donegal, Derry or Westmeath.