Question: MLS Cup 2014 was the 19th edition of MLS Cup, the match that determined the champion of Major League Soccer's 2014 season, the Galaxy won 2–1 after Overtime, winning their fifth MLS Cup title and also sending all-time which U.S. national team goal scoring leader into retirement, with his sixth MLS Cup crown?
Context: MLS Cup 2003, the eighth edition of Major League Soccer's championship match, was played between the Chicago Fire and the San Jose Earthquakes to decide the champion of the 2003 season.  The match took place at The Home Depot Center in Carson, California on November 23, 2003.  San Jose defeated Chicago 4–2 with a goal from Richard Mulrooney in the 50th minute.  It was San Jose's second MLS Cup victory in three years.  It was the first MLS Cup in which players from both teams were allowed to wear their primary uniforms.  It was also the first MLS Cup played between two former MLS Cup champions as well as the highest-scoring final, with 6 goals in total. MLS Cup 2014 was the 19th edition of MLS Cup, the match that determined the champion of Major League Soccer's 2014 season.  It is also the last MLS Cup to be held before the league's rebranding in 2015.  The Western Conference Champions LA Galaxy played the Eastern Conference Champions New England Revolution.  The match was held at the Galaxy's home field of the StubHub Center in Carson, California, as the Galaxy were awarded home advantage by finishing the regular season with more points than the Revolution.  The Galaxy won 2–1 after Overtime, winning their fifth MLS Cup title and also sending all-time U.S. national team goal scoring leader Landon Donovan into retirement with his sixth MLS Cup crown. Major League Soccer (MLS) is a men's professional soccer league, sanctioned by U.S. Soccer, that represents the sport's highest level in both the United States and Canada.  MLS constitutes one of the major professional sports leagues of the United States and Canada.  The league comprises 22 teams—19 in the U.S. and 3 in Canada.  The MLS regular season runs from March to October, with each team playing 34 games; the team with the best record is awarded the Supporters' Shield.  The postseason includes twelve teams competing in the MLS Cup Playoffs through November and December, culminating in the championship game, the MLS Cup.  MLS teams also play in other domestic competitions against teams from other divisions in the U.S. Open Cup and in the Canadian Championship.  MLS teams also compete against continental rivals in the CONCACAF Champions League. MLS Cup 2008 was the final match of the 2008 Major League Soccer season, and the 13th championship awarded by MLS.  The match took place on Sunday, November 23, 2008, at the Home Depot Center in Carson, California, between the Columbus Crew and New York Red Bulls.  MLS Cup 2008 was the only final in which two Eastern Conference teams met, and the first time since 1996 that both teams made their MLS Cup final debut in the same match.  Columbus won the game by a score of 3–1 with goals from Alejandro Moreno, Chad Marshall, and Frankie Hejduk — all assisted by Guillermo Barros Schelotto.  Schelotto was named man of the match, adding to his MVP award from the regular season.  The Crew became the fourth club to win both MLS Cup and the Supporters' Shield in the same season, following D.C. United (1997, 1999), Sporting Kansas City (2000), and Los Angeles Galaxy (2002). MLS Cup '99, the fourth edition of Major League Soccer's championship match, was played between D.C. United and the Los Angeles Galaxy to decide the champion of the 1999 season.  The match took place at Foxboro Stadium in Foxborough, Massachusetts on November 21, 1999.  D.C. United defeated Los Angeles 2–0 with goals from Ben Olsen and Jaime Moreno during the first half.  A rematch of the first MLS Cup- coincidentally held on the same venue- D.C. United captured their third MLS Cup victory in the first four years of Major League Soccer's existence and second victory against the Galaxy in an MLS Cup. The 2016 MLS Cup Playoffs (branded as the 2016 Audi MLS Cup Playoffs for sponsorship reasons) began on October 26, and ended on December 10 with MLS Cup 2016, the 21st league championship match for MLS.  This is the 21st version of the MLS Cup Playoffs, the tournament culminating the Major League Soccer regular season. The 2017 MLS Cup Playoffs (branded as the 2017 Audi MLS Cup Playoffs for sponsorship reasons) will begin on October 25, and ended on December 9 with MLS Cup 2017, the 22nd league championship match for MLS.  This is the 22nd version of the MLS Cup Playoffs, the tournament culminating the Major League Soccer regular season. The MLS Cup is the trophy awarded at the conclusion of the MLS Cup final, the post-season championship match of Major League Soccer (MLS), the top tier of professional men's soccer in the United States and Canada.  The winner is crowned champion in the same manner as in other North American sports leagues (i.e. via a playoff following a regular season).  This differs from other top soccer leagues around the world which consider the club with the most points at the end of the season to be the sole champion.  MLS honors that achievement with the Supporters' Shield.  An American team that wins the MLS Cup is awarded a berth in the following year's CONCACAF Champions League. Landon Timothy Donovan (born March 4, 1982) is an American former professional soccer player who played as a forward and attacking midfielder.  He holds numerous individual records in Major League Soccer (MLS) and for the United States national team and is often regarded as the greatest American men's soccer player of all-time. The 2014 MLS Cup Playoffs (branded as the 2014 MLS Cup Playoffs presented by AT&T for sponsorship reasons) was the nineteenth post-season tournament culminating the Major League Soccer regular season.  The tournament began in late October and culminated on December 7, 2014 with MLS Cup 2014, the nineteenth league championship for MLS.
Answer: Landon Donovan