 During their promotion season, the club went 25 games undefeated and reportedly attracted a crowd of over 50,000 spectators for a match with Wolverhampton Wanderers.City remained in the top tier of English football for over 30 years, winning the 1987 FA Cup under John Sillett, and in 1992, they became founding members of the Premier League.At the end of the 2000–01 season, they were relegated to the FL Championship.