Third kits existed in English football at least as early as the 1930s. Until 1989–90,[15] the FA Cup competition rules stated: "Where the colours of the two competing clubs are similar, both clubs must change unless alternative arrangements are mutually agreed by the competing clubs".[16] Away kits were often similar as well, therefore third kits were worn in the 1948 FA Cup Final by Manchester United and the 1950 final by Arsenal.[17] Similar rules were employed by European governing body UEFA, with Manchester United winning the 1968 European Cup Final in a blue third kit.[17]