Michael Fitzsimons will make his NFL debut for Dublin against Derry on Saturday night, as the Leinster champions' manager Pat Gilroy continues to blood new players.
Fitzsimons, a recent Under-21 Dublin Championship winner with Cuala, will take over at left corner back, after Philip McMahon picked up a minor injury in training.
Gilroy is also pressing Michael Savage of St. Vincent's into action in goal, with the experienced Stephen Cluxton dropping to the bench.
The Parnell Park clash with Derry (throw-in 7.30pm) will provide another good test for the Dubs, following on from their impressive opening success in Kerry last weekend.
Derry put down an early season marker by beating Tyrone by six points in their league opener, but star forward Paddy Bradley remains an absentee.
Bradley missed the Tyrone game with a heel injury and is expected to return for the Oak Leafers' third round tie against Kerry on March 7.
Raymond Wilkinson, who hit 1-2 against Tyrone, sustained a knee injury in last Saturday's win but is on course to retain his place in the starting line-up.
Meanwhile, Ross O'Carroll has be added to Dublin's lengthy injury list. He was set to made his senior debut for the Metropolitans against Kerry but a thigh injury, sustained in a Sigerson Cup game, has ruled him for three weeks.
Former captain Alan Brogan is currently recovering from a hand operation and will not be available until early next month, while key defender Barry Cahill is also in post-operation recovery mode.
Denis Bastick (ankle), Tomas Quinn (fractured metatarsal) and Darren Daly (ankle) are all currently sidelined, but Pat Burke and Darren Magee returned to training this week and hamstring strain victims Ger Brennan and Conal Keaney are both back doing some light running
DUBLIN (SF v Derry): M Savage; P Conlon, R O'Carroll, M Fitzsimons; P Griffin (capt), C O'Sullivan, J McCarthy; E Fennell, R McConnell; A Hubbard, M MacAuley, P Flynn; D Henry, B Kelly, K McManamon.
Substitutes: S Cluxton, C McCormack, P Casey, S Murray, D Nelson, D Carrigan, T Diamond, B Brogan, D Kelly, K Bonner, B McManamon, D Rock, J Brogan.