Sunderland boss O'Neill to throw in Fletcher, Johnson against Morecambe
Both are available to play after the game against Reading at the Stadium of Light was postponed over the weekend.
"The Morecambe game takes on a lot of significance now, although I thought it did anyway beforehand," O'Neill told safc.com.
"After Reading we might have made one or two changes. Now we'll have a little look and see what we're going to do.
"We will go pretty strongly into the game because obviously we want to get through."