Rory O'Carroll has been handed his first League start in almost five years by Dessie Farrell for tonight's trip to Castlebar.
O'Carroll's selection is one of two changes to the side that drew with Kerry in Croke Park last Saturday in Farrell's first League match as Dublin manager.
The Kilmacud Crokes man comes in at corner-back in a straight swap for Philly McMahon while Paul Mannion has been named at centre-forward in place of Conor McHugh.
Mannion was named in the team to play last week, although he was replaced before throw-in.
O'Carroll's last start in a League game was in April 2015, when Dublin beat Cork in the competition final.
Having starred in Dublin's subsequent All-Ireland win, picking up a third Celtic Cross and a second All Star, O'Carroll moved to New Zealand.
He returned last year although his only start came against Tyrone in a dead rubber in Omagh after both teams had qualified from their Super 8s group.
James Horan meanwhile, has selected Robbie Hennelly in goals for tomorrow night's match. His selection is one of four changes from the side that drew with Donegal in Ballybofey last week.
DUBLIN (SF v Mayo): E Comerford; E Lowndes, D Byrne, R O'Carroll; J McCarthy, J Small, E Murchan; B Fenton, B Howard; N Scully, P Mannion, C Kilkenny; K McManamon, P Andrews, D Rock.
MAYO: R Hennelly; P O'Hora, O Mullin, B Harrison; M Plunkett, C Boyle, P Durcan; S Coen, D O'Connor; F Boland, R O'Donoghue, J Flynn; K McLoughlin, J Carr, J Durcan.