West Ham United have banned a fan for wearing a shirt calling for the current board to leave.
Season-ticket holder Cameron Robson received a letter on Tuesday detailing how they believe he 'intended to incite the crowd' ahead of their Premier League defeat by Liverpool.
Robson, 23, had volunteered to wave a giant flag while the players walked out and a 'GSB OUT' slogan could be seen after he unzipped his coat.
It was in reference to joint-chairmen David Gold and David Sullivan and vice-chair Karren Brady.
Robson plans to appeal and told the Daily Mail: "I was just doing a job for them, being a flag-bearer, with my own choice of clothing which shouldn't really be an issue."