The 24-year-old defender was unavailable for 2-1 win over Derby due to a back problem but returns for Millen's final bow after resuming training earlier in the week.
Dean Gerken will retain his place in goal after coming back from a collar bone injury against the Rams, while Jamal Campbell-Ryce also came through the clash with Nigel Clough's men unscathed.
Striker Danny Haynes is a doubt, though, and could join long-term absentees Jamie McAllister (calf), James Wilson and Jamie McCombe (both knee) on the sidelines.
A win over the Seasiders will be the Robins' sixth in nine games since Millen took the reins and he will be desperate to sign off on a high before passing the job on to former Reading boss Steve Coppell.
