Crystal Palace supporters have staged a protest against UEFA's decision to demote the club to the Conference League.
On Tuesday, hundreds of fans marched to Palace's Selhurst Park stadium, carrying banners and chanting against European football's governing body.
The Eagles, who earned a spot in the Europa League by winning the FA Cup in May—marking their first major trophy—were relegated to a lower tier of UEFA competition due to breaches of multi-club ownership regulations.
American businessman John Textor holds a stake in Crystal Palace and is the majority owner of French club Lyon, which has also qualified for the Europa League.
According to UEFA's regulations, clubs owned beyond a certain level of influence by the same individual or entity cannot compete in the same European competition.
UEFA set a deadline of March 1, 2025, for clubs to demonstrate restructuring of multi-club ownership—a deadline that Palace failed to meet.
Textor is currently in the process of selling his stake in Crystal Palace to Woody Johnson, the owner of the New York Jets.
Nottingham Forest, who finished seventh in the Premier League last season, are set to replace Palace in the Europa League.
Palace is expected to appeal the decision at the Court of Arbitration for Sport (CAS).
"At the end of the day, it's an injustice, just by a couple of admin errors. We qualified for it," Nick Philpot from the Red and Blue Review podcast commented during the march.
"We won the cup—it should be us entering the competition without any doubt."
"You're penalizing the entire club and its fanbase. Why would you do that?" he added.
Last week, Crystal Palace chairman Steve Parish described the decision as "a bad day for football" and "a terrible injustice."
"We've been excluded from a European competition on the most absurd technicality," he stated. "Supporters of all clubs should be devastated for us."
UEFA has been approached for comment.