Why are we using triangular corner flags this season? 👀 The tradition: In English football, only clubs who have won the FA Cup use triangle flags. It’s not an official rule — the FA and IFAB don’t regulate it — but it’s one of football’s most respected traditions. The Origin: The background is a bit fuzzy but many believe it started with Cardiff City in 1927, the year they lifted the Cup. Others followed suit and it became an unwritten law of the game. Palace: After that unforgettable day at Wembley on 17 May 2025, we finally joined the winners’ circle. The triangle flags are a simple but powerful reminder of that historic moment. From the stands it might just look like a – but for us, it’s a symbol of making history. ❤️💙 #CPFC #CrystalPalace #SelhurstPark #PremierLeague