Brighton forward Izzy Brown will miss the remainder of the season after tearing his anterior cruciate ligament.
The 21-year-old, on loan from Chelsea, was forced off with just six minutes played during Monday's 2-1 FA Cup win over rivals Crystal Palace.
Brown took to social media to confirm the extent of his injury and to send a message to Brighton's fans.
"Not the news I wanted to hear, I have torn my ACL & it will need surgery to fix," he wrote on Instagram. "I will come back fitter & stronger and hopefully be ready for next season.
"Thank you to everyone at Brighton for the love and support they showed towards me, the fans, the staff, & all the players.
"I’ve met some amazing people here & these memories will be with me forever. See you all next season."
Brown made just four starts for Chris Hughton's side in the Premier League this campaign, appearing a further nine times as a substitute.
The youngster joined Chelsea from West Brom in 2013 but has made just one appearance for the Blues.
He has spent time on loan