Watford defender Jay DeMerit is still struggling to be fit to face Coventry City at the Ricoh Arena on Sunday.
The US international defender has an abdominal injury while Will Buckley is definitely out with a hamstring tear.
Boss Malky Mackay has hinted that at least a couple of youngsters will feature, with Piero Mingoia and Gavin Massey in contention for a place, but defender Jure Travner is out.