Joy, 22, is battling a groin injury, which looks set to keep the prop out of action for several weeks.
Head coach Scott Naylor had this to say:
“The physio will be monitoring his progress week by week and we’ll take it from there.
“Four or five weeks into the rehab we should have a better idea of where he stands in terms of playing.
“Surgery can’t be ruled out, but it will be a last resort and it will be considered only if the rehab doesn’t work.
“We have every reason to believe, however, that it will do the trick.”