Paul Sturrock's injury worries just seem to get worse by the day - not only will recent signing Rocastle be out for around two weeks with a knee ligament problem but Lewis McMahon, who has just got over the mumps, gets another setback with a hamstring pull.
Northern Ireland international James Quinn hurt his back against Poland in the week and will undergo a late fitness test and Peacock got a dead leg against Huddersfield on Tuesday and will also be a late inclusion to the squad.
But having said that the news for the Owls boss does not get better after he found out Graeme Lee will not return from his groin injury.
Expect a recall for Patrick Collins for the suspended Alex Bruce and even a start for Drew Talbot should Peacock or Quinn fail to be fit for the big game.