Young Nottingham Forest defender Fin Back has had "very successful" surgery on a hamstring injury.
The 20-year-old picked up the injury while out on loan at League Two side Carlisle United, where he has made 17 appearances in the fourth tier of English football this season.
"He had surgery on Wednesday morning over in Finland, there was a surgeon who did the operation over there," Carlisle United boss Paul Simpson told News & Star.