Striker Joe Gormley faces a long spell on the sidelines.
Peterborough United front man Joe Gormley faces up to a year on the sidelines after suffering a serious knee injury during a development fixture at Norwich City's training base last week.
The former Cliftonville man has now received the full results of a scan and club physiotherapist Jon Chatfield has confirmed the extent of the damage.
Manager Graham Westley added: 'It is obviously awful news. I think he knew instantaneously that it was a difficult situation he was in, but he has been very positive. He is a professional, he has got good people around him and he has got good medical people around him.
'Part of how you come back is about how you react right now and he is in a positive frame of mind. We have got a plan together for him and a date in the diary. Jack Baldwin is nearly back and I think Joe can look at Jack and see the road to recovery that he has made.
'Joe will be making progress down that road as soon as he has had the operation. It is disappointing for him, but he has to make sure he come back stronger and I am sure he will. While he is out, he has plenty of time to improve tactically because you watch a lot of football when you are injured and you can take on board a lot of lessons about how to play the game and come back a better player,' Westley said.