Super sub Joe McMahon is a doubt for inclusion in the Tyrone squad for Saturday's All-Ireland SFC quarter-final replay against Dublin at Croke Park.
Omagh defender McMahon, an Under-21 panellist last year, sat out training last week with the flu, but has a chance to prove his fitness to boss Mickey Harte at tonight's session.
McMahon came on for Gavin Devlin in the second half of the drawn game, which ended 1-14 apiece, ten days ago, and while impressing as a converted midfielder, he did miss two late point chances, dropping the ball short into the hands of Dubs 'keeper Stephen Cluxton on two occasions.
Meanwhile, Dublin manager Paul Caffrey is expected to name his side for the replay tonight after training, but could delay due to Darren Homan's back injury.
Midfielder Homan is struggling to be fit after suffering a back spasm in training on Saturday. Doctors have prescribed the Round Towers, Clondalkin star a week-long bout of rest.