Former footballer of the year Stephen O'Neill's bad run of luck with injuries has continued - the Tyrone forward is in danger of missing next month's Ulster final after injurying his hamstring during training.
The 26-year-old, whose 2006 season was disrupted by a series of hamstring injuries, managed to make a substitute appearance in Tyrone's recent Ulster semi-final win over Donegal.
O'Neill overcame tendonitis in one of his knees to play his part and kick two points in the Red Hands' 2-15 to 1-7 demolition of Donegal last week.
But this fresh injury has the Clann na nGael clubman rated as doubtful for Tyrone's July 15 showdown with Monaghan.
Better news for Tyrone boss Mickey Harte has come with the return of Gerard Cavlan and Tommy McGuigan to training.
Veteran forward Cavlan is back after recovering from a knee injury, while McGuigan, who made his championship debut against Fermanagh last month, is close to doing some ball work after making good progress with his broken wrist.