Seven St Johnstone players have been struck down with a virus ahead of their weekend SPL clash with Celtic.
Manager Steve Lomas had to cancel training at Stirling University on Thursday morning and is unsure over their fitness ahead of the match early on Saturday afternoon.
"We've had to cancel training this morning because there are six or seven players down with a bug," said Lomas.
"There's not much we can do about it, we will see how things are tonight and tomorrow."
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