Despite being named in the starting 15 for Tyrone's Ulster SFC quarter-final replay against Down, Red Hands midfielder Enda McGinley will not start tomorrow's game.
The Errigal Ciaran clubman suffered concussion in the drawn game last Sunday in Omagh, and following training last night Tyrone manager Mickey Harte decided that he will not risk McGinley.
His replacement will not be announced until shortly before the throw-in.
Elsewhere there are three other changes to the Tyrone team which drew last weekend's clash.
John Devine takes over from Pascal McConnell in goal, half-back PJ Quinn makes his championship debut replacing Damien McCaul, while Ciaran Gourley starts at centre-back, with Conor Gormley moving to midfield and Colin Holmes missing out.
Meanwhile, defenders Justin McMahon and Davy Harte, along with half-forward Colm Cavanagh, are all fit to start having recovered from injuries sustained in last week's match.
Although wearing number eight last Sunday, Sean Cavanagh played a big role at full-forward for Tyrone, and he will don the number 14 jersey for the replay.
The Moy player expected a tough encounter with Ross Carr's Down side last Sunday and feels exactly the same ahead of the replay.
"After us going six or seven points up in the first half we maybe got a bit complacent and we sort of thought with guys like Martin Penrose flying up front that we would be able to close the game out," Cavanagh said.
"Whenever you are playing Down you really don't know what you are going to get from them.
"Whatever they have, they can tackle players, and with the likes of (Dan) Gordon, (Benny) Coulter and then (Paul) McComiskey who came off the bench, they are always going to be dangerous.
"They showed that in the second half last week and to be honest we're just glad to be still in the Ulster championship."
Following a poor goal conversion rate in the opening half last weekend, Cavanagh is hopeful that the Tyrone forwards will have their shooting boots at hand tomorrow night.
"We did make a good start but as the game wore on you would have to give credit to Down. Big Dan Gordon around midfield was flying and the likes of Benny Coulter and Liam Doyle.
"These are all good players and to be honest Down are probably up there with the best in Ulster and people just don't realise it."
TYRONE (SFC v Down): J Devine; R McMenamin, J McMahon, PJ Quinn; D Harte, C Gourley, P Jordan; C Gormley, E McGinley; B Dooher, B McGuigan, C Cavanagh; M Penrose, S Cavanagh, C McCullagh.