Question: Which of the people that opened Dalga Arena is a Swiss football administrator who was the eighth president of FIFA?
Context: Arthur Drewry, CBE (3 March 1891 – 25 March 1961) was an English football administrator who served as the fifth president of FIFA, the world governing body of association football, from 1955 to 1961.  Drewry had held several football administration posts in his native England, serving as chairman of The Football Association and president of The Football League. Dalga Arena (Azerbaijani: "Dalğa Arena" ) is a multi-use stadium in Mardakan settlement of Baku, Azerbaijan.  It is currently used mostly for football matches.  The stadium holds 6,500 people and opened by Sepp Blatter and Michel Platini on 6 June 2011. Zhang Jilong (; born 9 February 1952) is a Chinese football administrator who is the current senior vice president of Asian Football Confederation.  He previously served as a Vice President of AFC from 2002 to 2011 and as Senior Vice President from 11 January 2007 to 1 August 2011.  He had been the Acting President of the Asian Football Confederation from 14 June 2011 until 1 May 2013 after the resignation of Mohammed Bin Hammam.  He was also a member of the FIFA Executive Committee. Jules Rimet (] ; 14 October 1873 – 16 October 1956) was a French football administrator who was the 3rd President of FIFA, serving from 1921 to 1954.  He is FIFA's longest-serving president, in office for 33 years.  He also served as the president of the French Football Federation from 1919 to 1942. Giovanni Vincenzo "Gianni" Infantino (] ; born 23 March 1970) is a football administrator and current FIFA president.  He holds dual nationality, Swiss and Italian.  He has been the general secretary of UEFA since 2009 and was elected president of FIFA during the 2016 FIFA Extraordinary Congress on 26 February 2016. Joseph "Sepp" Blatter (born 10 March 1936) is a Swiss football administrator who was the eighth president of FIFA ("Fédération Internationale de Football Association") from 1998 to 2015.  He is currently serving a six-year ban from participating in FIFA activities. Harold Alfred Mayne-Nicholls Secul (born 27 July 1961) is a Chilean journalist and former football administrator who was president of the National Professional Football Association (ANFP) and of the Chilean Football Federation (FFCh).  He was also a FIFA official.  On 6 July 2015, he was banned for seven years by FIFA Ethics Committee from all football-related activity.  On 2 March 2017, he appealed against the ban to the Court of Arbitration for Sport. Joseph "Sepp" Blatter (born 10 March 1936) is a Swiss sports administrator who, from 1998 to 2015, served as the eighth president of FIFA, the world governing body of association football.  Blatter has received numerous honours and awards from nation states, sport governing bodies, special interest groups, universities, and cities. Mohamed bin Hammam (Arabic: محمد بن همّام‎ ‎ ; born 8 May 1949) is a Qatari who was a football administrator and president of the Asian Football Confederation from 1 August 2002 to 14 June 2011, and a member of FIFA's 24-man executive committee from 1996 to 2011 for more than 15 years.  On 23 July 2011, Bin Hammam was banned for life from all FIFA and football related activities by an action of the FIFA Ethics Committee.  Bin Hammam challenged this sanction in the Court of Arbitration for Sport and the ban was subsequently annulled on 19 July 2012 due to lack of sufficient evidence.  However, just 5 months later in December 2012, FIFA handed bin Hammam a second life ban from football after "conflicts of interest" were identified in his role as president of the AFC. Gustav Max Wiederkehr (2 October 1905 — 7 July 1972) was a Swiss football administrator.  He served as UEFA President from 1962 to 1972.
Answer: Sepp Blatter