Argyle wing-back George Cooper is to undergo surgery on a knee problem.
The 24-year-old, who joined the Pilgrims on a long-term deal in the summer, sustained the injury during the Greens’ 2-1 defeat at his former side Crewe Alexandra last month. Subsequently, the club sent him to a specialist, where the extent of the injury was revealed.
Argyle manager Ryan Lowe said: "We're gutted for George, but we have got to do right by the boy and get him back to fitness as soon as we possibly can.
"He's in the right place mentally, he's just disappointed he can't help the lads at the moment.
"Physically, we'll get him a bit stronger while he's recovering. He signed a long-term contract at this football club and there will be plenty of games to play over the years he will be with Plymouth Argyle.
"Once the operation is done, we'll put a programme together for him, and he'll be back physically and mentally stronger than ever."
The Warrington-born wide-man has made 12 Sky Bet League One appearances this season, netting once – a sublime curling effort in the Greens’ 4-4 draw at AFC Wimbledon back in September.
Get well soon, George.