Goalkeeper Jack Hamilton is out of the Scottish FA Youth Cup Final after suffering a serious ankle injury.
The Scotland U19 international, who has been on loan at East Fife, ruptured his ligaments in training at Riccarton last week and will see a specialist in the coming days to assess the best course of action.
The big goalkeeper will now miss the remainder of the season and, if an operation is required, could be out of action for up to 12 weeks.
"It's a bad one for Jack," confirmed boss Gary Locke. "He came down awkwardly in training and we knew immediately he had done some damage.
"We have had him scanned and he'll visit a specialist next week. He might require an operation but we will know more about that after his visit but regardless we are looking at a significant time out for him. That's a real blow for the lad as we have the youth cup final coming up and he will have been looking forward to playing in that.
"We will give him all the support he needs as he begins his recovery and tries to get back fit as quickly as possible."