Exeter City's new signing Troy Archibald-Henville will miss the rest of the season after suffering a knee injury.
Archibald-Henville joined the Grecians for an undisclosed fee from Tottenham Hotspur on deadline day after previously enjoying two loan spells at St James Park.
He was warming up ahead of his first game as a permanent Exeter player against Southampton last week only to land awkwardly.
The 21-year-old will now sit out the rest of the League One campaign, although Exeter boss Paul Tisdale expects his side to cope without Archibald-Henville.
"Losing Troy for the rest of the season is a massive blow for everyone at the club and most of all for Troy," Tisdale told the club's official website.
"We are very disappointed with the news, but we have plenty of players who can come in.
"He did it in the warm-up on Saturday which is why he didn't feature at all. He jumped and bizarrely just came down funny and hurt his cartilage."
Meanwhile, striker Adam Stansfield will be out for the next month after being booked in for an operation to repair some damaged knee cartilage.
Tisdale added: "It is not the same ligament he injured last season. His foot was planted in the mud and really took a real bang so he definitely hurt himself.
"I think he has been at his best since I've known him. He is playing better now than he did in the Conference which may be a surprise to a few people.
"He has improved and is still improving and to lose him is a big loss, but these things go in cycles and the next man must take his place."