Trotman returned to Preston but was not involved int he squad for Saturday's clash at Bristol. Mawene is back from his knee injury shortly with St Ledger wtill at Deepdal there are four central defenders to choose from with Chilvers and Collins fighting for a place.
It has been rumoured though that Celtic have had a £2m bid for St Ledger rejected and they may return with a higher offer which could alter the defensive situation.