Celtic defender John Kennedy is expected to receive confirmation later today that he faces a three-month lay-off.
Kennedy landed awkwardly during Celtic's Champions League win against Shakhtar Donetsk on Wednesday and injured his left knee, which he had four operations on over a first-team absence of more than three years.
The centre-back was carried off on a stretcher during the first half at Celtic Park amid fears he had suffered a recurrence of the cruciate ligament damage.
The 24-year-old spent Wednesday night in hospital but the initial diagnosis revealed he faces a three-month lay-off.
The scans revealed damage to the lateral meniscus and the posterior lateral complex of the knee.
Celtic's medical team will check with Colorado-based surgeon Richard Steadman, who carried out the operations on the knee Kennedy injured on Scotland duty in March 2004.
Celtic boss Gordon Strachan said today: 'The scans are getting shown to Dr Steadman over in America and once he has seen the scans we will go from there.
'But the doctor says probably three months. I have just been with him just now and he was sitting up, bending his knee in the treatment room, which is absolutely fantastic. So it's good news.'