- FC Barcelona's Lionel Messi is widely hailed as the best footballer in the world after scoring four goals for the first time in his career in one UEFA Champions League game, including his fourth hat-trick of 2010.
- Barcelona win the UEFA Champions League, defeating Arsenal 2-1 in the final. Arsenal goalkeeper Jens Lehmann became the first player ever sent off in a Champions League final. Barcelona's goals were scored by Belletti and Samuel Eto'o; Arsenal's goal was scored by Sol Campbell.
- Manchester United win the UEFA Champions League at the Nou Camp stadium, Barcelona, beating Bayern Munich to lift their third major trophy in their unprecedented Treble, after winning the English Premier League and FA Cup.
- The President of Spanish Football Federation and Vicepresident of FIFA and UEFA, Ángel María Villar, is arrested with his son amid a corruption scandal.
- Palestinian footballer Mahmoud Sarsak turns down an FC Barcelona offer to attend an El Clásico game, after Gilad Shalit, an Israeli soldier who had been held captive in Gaza for five years, is also invited. A Hamas spokesperson asked the media not to broadcast the game.