Inverness Caledonian Thistle's Scottish Cup progress has come at a cost, with Roman Golobart and goalscorer Andrew Shinnie picking up long-term injuries.
Defender Golobart could be out for eight to 10 weeks with an ankle sprain.
And midfielder Shinne has broken a metatarsal on his left foot and will have to see a specialist to see if he needs an operation.
Both injuries were picked up in Wednesday's 3-2 fourth-round replay win over Dunfermline Athletic.
Caley Thistle manager Terry Butcher said: "There has been a lot of travelling this week, to Motherwell last weekend and Dunfermline, and we were pleased with the two wins, but it has come at a heavy price, so there has been mixed feelings.
"Roman Golobart is going to be out for probably eight to 10 weeks with a grade three ankle sprain.
"It is very severe and he will have a scan when the swelling goes down.
"Andrew Shinnie is probably worse. He has broken his fifth metatarsal on his left foot and he will have to see a specialist to see if he needs an operation.
"We are all devastated because both of them have been outstanding for us this season."
Butcher, whose side next host Celtic in the Cup, will also be minus another midfielder for Saturday's visit by Hearts in the Scottish Premier League.
"Lee Cox also had to come off with a calf strain, so he will be out for the weekend at least," the manager reported.
"It has been an unbelievable week and we want to finish it on a high by making it three wins in a week.
"We wanted to make an impact through January and we certainly have done half the job, so we want to finish the job with a couple of wins at the end of the month to see where we are then."