The 34 year old defender is in with a chance of making the game after he came through a hard training session on Wednesday although Swaz feels he isnt fully fit as yet.
He told the Official website "I perhaps shouldn't have trained today and I might have been better off leaving it until tomorrow as I can still feel the muscle between my hip and ribs. But I just hate not being involved and I'm sure by the weekend I should have received the all clear."
Should Swaz not make it then the obvious replacement is Martin McIntosh who played the full 90 minutes in the reserves 4-0 home defeat against Barnsley on Tuesday.
Millers Reserves: Montgomery; Scott, King, Mcintosh, Brogan; Garner (Bradford 78), Fox, Mullin, Newsham, Whittington, Duncum (Taylor ht). Unused: Hedge, Armstrong, Daws.