"Rory won't be fit which is a big blow so our resources are a bit stretched at the moment, manager Gordon Strachan told www.saintsfc.co.uk
"We have five good players out so that becomes a problem. we are not bad when we are all fit so I don't want to bring in players simply to make up the numbers. That would not be right.
"This is the sort of time when we might have given some youngsters a chance but there are none ready for the first-team just at the moment."