Neymar was criticised for his showboating in the final minutes of the match, with Barcelona manager Luis Enrique excusing his Brazilian striker for cultural reasons.
Both teams and the Royal Spanish Football Federation were given fines by the nation's government for security breaches and allowing separatist demonstrations at the match.
[3] At the same time, according to Barcelona-based newspaper La Vanguardia, the president of the Royal Spanish Football Federation (RFEF), Ángel María Villar, wanted the final at the San Mamés Stadium in Bilbao.
In the first leg away at the Estadio El Collao on 2 December 2014, they drew 1–1; Francis opened the scoring for the hosts while Borja Viguera equalised in added time.
[14] Athletic's quarter-final began on 21 January with a goalless draw at the La Rosaleda against Málaga, but eight days later in the second leg Aduriz scored three minutes into the second half to send them into the semi-finals.
[15] The semi-final against Espanyol began with a 1–1 home draw, Aduriz putting Bilbao ahead on his 34th birthday and Víctor Sánchez equalising ten minutes before half time.
[16] On 4 March, Athletic travelled for the second leg at the Estadi Cornellà-El Prat and won 2–0 to reach the final, with first-half goals from Aduriz and Etxeita.
The first leg was in Aragon at the Estadio El Alcoraz on 3 December 2014, and Barcelona won 4–0 with goals from Ivan Rakitić, Andrés Iniesta, Pedro and Rafinha.
They hosted the first leg at the Camp Nou on 8 January 2015 and won 5–0, with two goals from Neymar, a Lionel Messi penalty and contributions from Luis Suárez and Jordi Alba.
[20] A week later at the Estadio Manuel Martínez Valero, Barcelona defeated the Valencian club 4–0, starting with a free kick from defender Jérémy Mathieu followed by a long-range strike by Roberto, a penalty by Pedro and an added-time goal by Adriano.
Within the first five minutes of the second half, Manu Trigueros equalised with a long-range strike but Iniesta gave the advantage back to Barcelona, which was extended by Gerard Piqué later on despite Neymar missing a penalty.
[24] They won by the same scoreline again in the second leg at the Estadio El Madrigal on 4 March with a brace from Neymar and a goal by Suárez, despite former Barcelona player Jonathan dos Santos equalising at one point.
[25] Athletic kicked the game off, and had an opportunity after five minutes, when Mikel Rico crossed for Aduriz, but he was prevented from making contact with the ball by Jordi Alba.
Five minutes later, Barcelona launched a counter-attack starting with goalkeeper Marc-André ter Stegen and ending with Neymar volleying the ball into the goal, but it was ruled out for offside.
In the 20th minute, Messi scored the first goal of the game, taking possession on the right-hand side of the pitch and beating four defenders before finishing with a near-post shot.
In the 36th minute, Neymar scored the second goal of the game, finishing from close range when set up by Suárez, after earlier work by Messi and Rakitić.
[30] Barcelona had already won La Liga, and concluded their treble a week after securing the Copa, with victory over Juventus in the 2015 UEFA Champions League final in Berlin.