A man has been charged and two teenagers cautioned following two pitch invasions at the Swansea v Manchester City FA Cup quarter-final on Saturday.
The 21-year-old, from Conwy, has been charged with going on to the playing area at a football match and is due before Swansea magistrates on 2 April.
South Wales Police said a 15-year-old from Bury, Greater Manchester, and 16-year-old from Swansea received youth cautions.
Manchester City won the match 3-2.
No-one was hurt as a result of the invasions, but they follow a number of high-profile incidents involving supporters running on to the pitch during games.
Last Monday, Birmingham City fan Paul Mitchell was jailed for 14 weeks for attacking Aston Villa captain Jack Grealish during Sunday's derby match against Aston Villa.
On the same day, a fan ran on the pitch at Arsenal's Emirates Stadium and shoved Manchester United defender Chris Smalling.
Two days earlier on Friday, a man was arrested after Rangers' James Tavernier was confronted by a spectator during the Scottish Premiership draw with Hibernian.