Callam sidelined for remainer of season

And the 25-year-old lock admitted the problem could have brought the curtain down on his career had he not received the right treatment.

Callam said: "I underwent a routine scan on an injury and discovered a bone cyst in my hip; we were very lucky that we found it.

"It is a rare injury to find in a young sportsman - they are not very common.

"I had an MRI scan two years ago and there was nothing there, but for whatever reason it had developed over that period of time.

"I then underwent a biopsy to ascertain what the cyst was and that was why there was almost a two-month wait to determine the next step forward.

"Initially I was devastated, but fortunately we found out when we did because it could have had serious repercussions on my rugby career."

Callam underwent an operation at the Spire Murrayfield and he praised the treatment he received at the nearby hospital.

He added: "I got looked after fantastically well and the surgeons did a superb job. I was lucky to receive such wonderful attention.

"Now after undergoing the operation I will hopefully be back playing again next season.

"I've got eight weeks on crutches. Hopefully after four months I should be able to start training again and then it will be a case of building myself up from there."