Mika Biereth is set to spend up to three months on the sidelines.
The Arsenal loanee sustained a knee injury in our Viaplay Cup match against St Mirren on Saturday.
Scans have revealed a serious knee injury and means the striker will miss 12 weeks of the season.
Our loan agreement with Arsenal has not changed as a result of this injury.
We wish Mika all the best in his recovery and look forward to seeing him back playing soon.