On-loan Brighton midfielder Joao Teixeira will be out for the rest of the season with a broken leg.
The 22-year-old, who is on loan from Liverpool, sustained the injury in the 0-0 draw with Huddersfield on Tuesday.
Teixeira, who was stretchered off after a challenge by Nahki Wells, has a fracture just above the ankle.
"Our thoughts are with Joao, as this is a real blow to him after such a good season for the club," Seagulls boss Chris Hughton told the club website.
"We all wish him a speedy recovery and return to action."
The Portugal Under-21 international joined Brighton in August and scored six goals in 35 appearances during his time at the Amex Stadium.
"He's been an important player for the club this season, both before and after I came to the club," Hughton added.
"I would like to thank him for his efforts during his time on loan here, and also Liverpool for allowing him to come."