McDermott saw his side make it seven league wins in a row at Scunthorpe in midweek as the Royals climbed to within three points of the top two in the Championship.
And he could name an unchanged side after captain Matt Mills returned to the heart of the defence after a month out with a groin injury.
Goalkeeper Adam Federici is back after nine games out with a knee injury but has been restricted to a place on the bench due to the form of England Under-21 international Alex McCarthy.
Forward Noel Hunt (foot) is still out but defender Alex Pearce is fit after a thigh injury.
The Royals will be looking to continue their impressive home form, having lost just three league games at the Madejski all season.
Source: PA
Source: PA