Manchester United defender Tom Thorpe has cut short his loan at Birmingham City.
The centre-back lasted just 15 minutes of the 3-3 draw with Derby County before leaving the field on a stretcher.
Manager Lee Clark told the club's official website: "We're devastated for him.
"He's a terrific kid and we were absolutely delighted to get someone of his quality. Manchester United rate him so highly and he's been a brilliant lad."
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