 Complete the following phrase:  In August 1974, a Blackpool fan was stabbed to death at the back of the Spion Kop, Bloomfield Road at Blackpools home match with Bolton Wanderers. It was widely reported as being the first hooligan death at an English football match, and other clubs who gained notorious reputations for hooliganism during the 1970s and 1980s included Chelsea, Millwall, West Ham United, and Leeds United. The nadir came in May 1985, when Liverpool fans hooliganism, combined with poor policing and infrastructure, led to the deaths of 39 Juventus fans before the 