The 2005 FA Cup final was a football match played between Arsenal and Manchester United on 21 May 2005 at the Millennium Stadium, Cardiff. It was the final match of the 2004–05 FA Cup, the 124th season of English football's primary cup competition, the FA Cup. Arsenal became the first team to win the FA Cup via a penalty shoot-out, despite being outplayed throughout the game, after neither side managed to score in the initial 90 minutes or in 30 minutes of extra time. The shoot-out finished 5–4 to Arsenal, with Patrick Vieira scoring the winning penalty after Paul Scholes' shot was saved by Arsenal goalkeeper Jens Lehmann.

As both teams were in the highest tier of English football, the Premier League, Arsenal and Manchester United entered the competition in the third round. Matches up to the semi-final were contested on a one-off basis, with a replay taking place if the match ended in a draw. Both clubs only needed one replay along the way to the final; Arsenal's tie against Sheffield United in the fifth round was decided by a penalty shootout, whereas Manchester United overcame non-league Exeter City in the third round, after the original tie ended goalless.

2005 FA Cup final

Protests over the impending takeover of Manchester United by American businessman Malcolm Glazer had threatened to overshadow the final, though demonstrations in Cardiff required little intervention from the police. Both managers for the final made surprising changes to their team; Arsène Wenger unconventionally deployed a defensive formation, while Sir Alex Ferguson left midfielder Ryan Giggs on the bench. Manchester United dominated the match, creating four times as many shots as their opponents, but struggled to find the breakthrough. In extra time, Arsenal's José Antonio Reyes was sent off for a second bookable offence, becoming only the second player to be sent off in an FA Cup final.

2005 FA Cup final

The British press unanimously agreed that Arsenal were fortunate to win; Wenger himself admitted so in his press conference afterwards. A television audience of over 480 million worldwide watched the final; in the United Kingdom, coverage of the match peaked at 12.8 million, making it the highest-rated FA Cup match since the 1996 final.

2005 FA Cup final

Route to the final

The FA Cup is English football's primary cup competition. Clubs in the Premier League enter the FA Cup in the third round and are drawn randomly with the remaining clubs. If a match is drawn, the tie is replayed at the ground of the away team from the original match. As with league fixtures, FA Cup matches are subject to change in the event of games being selected for television coverage and this often can be influenced by clashes with other competitions. In September 2004, it was announced that the Millennium Stadium was chosen as the venue for the semi-finals, in addition to the final.

Arsenal

Arsenal's cup run started with a home tie against Stoke City. The visitors took the lead just before the break, but goals from José Antonio Reyes and Robin van Persie in the second half meant Arsenal won 2–1. They then faced Wolverhampton Wanderers at home in the next round; a goal apiece from Patrick Vieira and Freddie Ljungberg secured a comfortable 2–0 victory.

Arsenal's opponent in the fifth round was Sheffield United. After 35 minutes Dennis Bergkamp was sent off for his apparent push on Danny Cullip. With eleven minutes of normal time remaining, Robert Pires scored for Arsenal, but the team conceded a late penalty which Andy Gray converted. The equaliser for Sheffield United meant the match was replayed at Bramall Lane on 1 March 2005. Both teams played out a goalless draw after full-time and throughout extra-time, so the tie was decided by a penalty shootout. Arsenal goalkeeper Manuel Almunia saved two penalties, which ensured progress into the quarter-finals.

Bolton Wanderers hosted Arsenal at the Reebok Stadium in the sixth round of the competition. Ljungberg scored the only goal of the tie after just three minutes; he had an opportunity to extend Arsenal's lead in stoppage time, but hit the ball over from six yards. It was described by BBC Sport as the "most glaring miss of the match, if not the entire season."

Arsenal faced Blackburn Rovers in the semi-final which was played on 16 April 2005. Two goals from Van Persie and one from Pires gave Arsenal a 3–0 win, in a match marred by Blackburn's aggressive tactics.