Fitzmaurice has made three changes to the side that beat Galway in the quarter-final for the eagerly awaited showdown with the Connacht champions at Croke Park.
Peter Crowley comes in at centre-back ahead of Killian Young, while David Moran, who replaced injured Bryan Sheehan against the Tribesmen, is retained at midfield.
There is no place for Declan O’Sullivan in attack as Stephen O’Brien, injured for the Galway game, claims the No 13 shirt.
Fitzmaurice’s selection has sparked the guessing games among Kerry fans and will put Mayo boss James Horan on red alert.
Online speculation last night suggested Young may be carrying an injury but the Renard man, who missed last year’s semi-final against Dublin with a broken ankle sustained just days before the game, is listed among the substitutes.
Young, Sheehan and O’Sullivan will sit on a bench that also contains Kieran Donaghy and Darran O’Sullivan.
Laune Rangers man Peter Crowley may be detailed to man-mark Mayo powerhouse Aidan O’Shea and the feeling in the Kingdom is that Kerry’s opponents will have to make hay in the first half, before Fitzmaurice unleashes the cavalry.
Paul Murphy, listed at right half-back, is also tipped to drop back and patrol Mayo’s lethal inside forward Cillian O’Connor.
Meanwhile, the Kerry team to play Mayo in the Electric Ireland minor semi-final shows just one change in personnel to the side that demolished Kildare last time out.
Manager Jack O’Connor has shuffled his pack as Brian Rayle, who played in the Munster final victory over Cork, comes into the side at centre-forward in place of Liam Carey.
B Kelly; M Ó Sé, A O’Mahony, S Enright; P Murphy, P Crowley, F Fitzgerald; A Maher, D Moran; M Geaney, J Buckley, D Walsh; S O’Brien, P Geaney, J O’Donoghue.
S Ryan;D O’Donoghue, B Ó Beaglaíoch, T O’Sullivan; B Sugrue, A Barry, C Coffey; B O’Sullivan, M O’Connor; M Flaherty, B Rayle, M Burns; J Kiely, K Spillane, T Ó Sé.