Sunderland Association Football Club (/ ˈ s ʌ n d ər l ə n d / (), locally / ˈ s ʊ n d l ə n /) is an English professional football club based in the city of Sunderland, Tyne and Wear.Sunderland play in League One, the third tier of English football.Since its formation in 1879, the club has won six top-flight (First Division, now the Premier League) titles (1892, 1893, 1895, 1902, 1913 …