Question: The Football League Super Cup was formed in response to an incident when escaping fans were pressed against a collapsing wall in what stadium?

full_context: Document 1: 1991 European Super Cup: The 1991 European Super Cup was the 16th UEFA Super Cup, an annual football match contested by the winners of the previous season's European Cup and Cup Winners' Cup competitions. The match was played on 19 November 1991 and featured the 1990–91 European Cup winners, Red Star Belgrade, and Manchester United, winners of the 1990–91 Cup Winners' Cup. It was meant to be played over two legs, but due to the political unrest in Yugoslavia at the time, UEFA decided that only the Old Trafford leg would be played. Manchester United won the match 1–0, with Brian McClair scoring the winning goal in the 67th minute.
Document 2: 1991 European Cup Winners' Cup Final: The 1991 European Cup Winners' Cup Final was a football match played between Manchester United and Barcelona on 15 May 1991 at Feijenoord Stadion, Rotterdam. It was the final match of the European Cup Winners' Cup 1990–91 and the 31st European Cup Winners' Cup Final. It came at the end of the first season of the reintroduction of English clubs into European competition after the ban following the Heysel disaster.
Document 3: Football League Super Cup: The Football League Super Cup (later known under its sponsored name as the ScreenSport Super Cup) was a one-off football club competition held in England in the 1985–86 season. It was organised by the Football League and was intended as some form of financial and sporting compensation for the English clubs which had qualified for European competition in the previous season but had been banned from entering European tournaments by UEFA following the Heysel Stadium disaster. With the ban set to last into the foreseeable future, England's clubs stood to lose a great deal of revenue, and would also have fewer opportunities to win silverware, so the Super Cup was established in order to hopefully offset at least some of this lost income, as well as offering additional competition for them.
Document 4: Michel Kitabdjian: Michel Kitabdjian (born 7 May 1930 in Nice) is a French former referee. He officiated at the 1975 European Cup Final between Leeds United and Bayern Munich, disallowing a goal by Leeds United's Peter Lorimer for offside and denying Leeds two penalty appeals as Franz Beckenbauer first handled the ball in the box and then brought down Allan Clarke in a tackle. Leeds fans became angry at the referee, and one fan managed to access the playing field after the final whistle. After gendarmes removed him, other Leeds fans began rioting in the stands.
Document 5: 1985 European Cup Winners' Cup Final: The 1985 European Cup Winners' Cup Final was a football match contested between Everton of England and Rapid Wien of Austria. It was the final match of the 1984–85 European Cup Winners' Cup and the 25th European Cup Winners' Cup Final. The final was held at Feijenoord Stadion in Rotterdam, Netherlands, on 15 May 1985. Everton, which dominated throughout, won the match 3–1 thanks to goals by Andy Gray, Trevor Steven and Kevin Sheedy. Everton were unable to defend the trophy: as league champions they would have entered the 1985–86 European Cup, but they were not permitted to play in either competition following the actions of rival Liverpool fans at the Heysel Stadium, which saw all English clubs banned from European competitions.
Document 6: 2009 Houphouët-Boigny stampede: The 2009 Houphouët-Boigny stampede occurred on 29 March 2009 in the Stade Félix Houphouët-Boigny in Abidjan, Côte d'Ivoire before a 2010 FIFA World Cup qualification match between Malawi and Côte d'Ivoire. Nineteen people were killed and 135 were injured. In an attempt to control a stampede police fired tear gas into the crowds, who had begun jostling with each other at least 40 minutes before kick off. The match was particularly popular among locals, with world stars such as Didier Drogba, Sol Bamba and Salomon Kalou due to play for Côte d'Ivoire.
Document 7: 1989 European Cup Final: The 1989 European Cup Final was a football match held at the Camp Nou in Barcelona, Spain on 24 May 1989, that saw Milan of Italy defeat Steaua București of Romania 4–0. Two goals each from Marco van Basten and Ruud Gullit gave the Italian side their third victory in the competition.
Document 8: Heysel Stadium disaster: The Heysel Stadium disaster (] , ] ; Dutch: "Heizeldrama" ; French: "Drame du Heysel" ) occurred on 29 May 1985 when escaping fans were pressed against a collapsing wall in the Heysel Stadium in Brussels, Belgium, before the start of the 1985 European Cup Final between Juventus of Italy and Liverpool of England. 39 people—mostly Italians and Juventus fans—were killed and 600 were injured in the confrontation.
Document 9: FAI Super Cup: The FAI Super Cup was an association football super cup featuring clubs from the Republic of Ireland. It was played for between 1998 and 2001. It was a pre-season tournament played in the summer before the regular League of Ireland season began. The same four clubs that qualified to represent the Republic of Ireland in UEFA competitions also qualified for the Super Cup. League of Ireland clubs had previously played in a similar competition known as the Top Four Cup. A similar competition, the LFA President's Cup, co-existed with the FAI Super Cup. Since 2014 the FAI has organised a new super cup, the President's Cup.
Document 10: 2015 UEFA Champions League Final: The 2015 UEFA Champions League Final was the final match of the 2014–15 UEFA Champions League, the 60th season of Europe's premier club football tournament organised by UEFA, and the 23rd season since it was renamed from the European Champion Clubs' Cup to the UEFA Champions League. It was played at the Olympiastadion in Berlin, Germany, on 6 June 2015, between Italian side Juventus and Spanish side Barcelona.
Document 11: Super cup: A super cup is a competition, usually but not exclusively in association football, which often forms the "curtain-raiser" to a season. It is typically contested on a national level by two competition winners of the previous season: the knock-out cup winner and the league winner. There are also continental super cups, like the UEFA Super Cup in football, which puts together winners of the top- and second-tier UEFA competitions. Sometimes these are two-legged ties, with a match played at each side's stadium, but increasingly they are one-off fixtures at a neutral venue, such as a national stadium. Some Super Cups have even been staged in venues outside their home country, such as the Italian, French, Mexican and Turkish games.
Document 12: 1984 European Super Cup: The 1984 European Super Cup was an association football match between Italian team Juventus and English team Liverpool, which took place on 16 January 1985 at the Stadio Comunale. The match was the annual European Super Cup contested between the winners of the European Cup and European Cup Winners' Cup. At the time, the European Super Cup was generally a two-legged fixture, but only the first leg (in Turin) was played, due to fixture congestion.
Document 13: List of UEFA Super Cup matches: The UEFA Super Cup is an annual association football match contested between the winners of the UEFA Champions League and the UEFA Europa League. Established in 1972, it was contested between the winners of the European Cup (or UEFA Champions League since 1993) and the UEFA Cup Winners' Cup until 1999, when the latter was discontinued by UEFA. The last Super Cup disputed in this format was the 1999 UEFA Super Cup between Lazio and Manchester United, which Lazio won 1–0. The competition was originally played over two legs, one at each participating club's stadium in the winter months, but since the 1998 edition, it consists of a single match played at a neutral venue in August. Between 1998 and 2012, the Stade Louis II in Monaco hosted the Super Cup, but since 2013, it has taken place every year at a different stadium across Europe.
Document 14: Hillsborough disaster: The Hillsborough disaster was a human crush at Hillsborough football stadium in Sheffield, England on 15 April 1989, during the 1988–89 FA Cup semi-final game between Liverpool and Nottingham Forest. The resulting 96 fatalities and 766 injuries makes this the worst disaster in British sporting history. The crush occurred in the two standing-only central pens in the Leppings Lane stand, allocated to Liverpool supporters. Shortly before kick-off, in an attempt to ease overcrowding outside the entrance turnstiles, the police match commander, chief superintendent David Duckenfield, ordered exit gate C to be opened, leading to an influx of even more supporters to the already overcrowded central pens.
Document 15: 1957–58 European Cup: The 1957–58 European Cup was the third season of the European Cup, Europe's premier club football tournament. The competition was won by Real Madrid, who beat Milan 3–2 in the final, following a 2–2 draw after 90 minutes. This was Real Madrid's third European Cup title in a row. However, the 1957–58 season was marred by the air disaster in Munich, when eight Manchester United players lost their lives on their way home from Belgrade, after a 3–3 draw in the quarter-final second leg with Red Star Belgrade. The English champions were ultimately defeated in the semi-finals by the eventual runners-up, AC Milan of Italy.
ground_truth: Heysel Stadium in Brussels