Match ends, Athletic Club 1, Sevilla 2.
Holders Sevilla claimed their first away win of the season with a first-leg victory over Athletic Bilbao in the Europa League quarter-finals.
Vicente Iborra struck seven minutes from time to earn a 2-1 win that keeps Unai Emery's side on course to lift the trophy for the third straight year.
Timothee Kolodziejczak had levelled for Sevilla after Aritz Aduriz's opener.
There were also 2-1 wins for Shakhtar Donetsk and Villarreal against Braga and Sparta Prague respectively.
Yaroslav Rakitskiy put Ukrainian side Shakhtar in front in Portugal and Facundo Ferreyra pounced to make it 2-0 to the visitors before a late effort by home substitute Wilson Eduardo gave Braga hope.
Cedric Bakambu was the hero for Spanish side Villarreal with both their goals, either side of Jakub Brabec's equaliser for Sparta.
In Thursday's other quarter-final, favourites Borussia Dortmund were held to a 1-1 draw by Liverpool.
- 13Herrerín Buisán
- 10De Marcos AranaBooked at 72mins
- 2Bóveda Altube
- 16Etxeita Gorritxategi
- 24Balenziaga OruesagastiBooked at 51mins
- 6San José
- 7Etxebarria Urkiaga
- 15WilliamsSubstituted forSusaetaat 62'minutes
- 5Eraso GoñiSubstituted forVigueraat 69'minutes
- 19Muniain GoñiSubstituted forLekue Martínezat 63'minutes
- 1Iraizoz Moreno
- 3Elustondo Urkola
- 8Iturraspe Derteano
- 18Gurpegi Nausia
- 30Lekue Martínez
- 31Soria Solís
- 23Andújar Moreno
- 3RamiBooked at 67mins
- 2TrémoulinasSubstituted forFazioat 12'minutes
- 20Machín PérezBooked at 88mins
- 19BanegaBooked at 70minsSubstituted forIborraat 74'minutes
- 7Krohn-DehliSubstituted forKonoplyankaat 68'minutes
- Mark Clattenburg
- Shots on Target
Second Half ends, Athletic Club 1, Sevilla 2.
Hand ball by Aduriz (Athletic Club).
Offside, Sevilla. Vicente Iborra tries a through ball, but Timothée Kolodziejczak is caught offside.
Foul by Aduriz (Athletic Club).
Adil Rami (Sevilla) wins a free kick in the defensive half.
Attempt saved. Yevhen Konoplyanka (Sevilla) left footed shot from outside the box is saved in the centre of the goal. Assisted by Timothée Kolodziejczak.
Offside, Athletic Club. San José tries a through ball, but Markel Susaeta is caught offside.
Vitolo (Sevilla) is shown the yellow card.
Aduriz (Athletic Club) wins a free kick on the left wing.
Foul by Vitolo (Sevilla).
Goal! Athletic Club 1, Sevilla 2. Vicente Iborra (Sevilla) right footed shot from the centre of the box to the bottom left corner. Assisted by Kevin Gameiro with a through ball following a fast break.
Attempt blocked. Markel Susaeta (Athletic Club) left footed shot from outside the box is blocked.
Attempt blocked. Markel Susaeta (Athletic Club) right footed shot from outside the box is blocked.
Corner, Athletic Club. Conceded by Grzegorz Krychowiak.
Attempt blocked. Beñat (Athletic Club) right footed shot from outside the box is blocked. Assisted by Balenziaga.
Offside, Sevilla. Vitolo tries a through ball, but Kevin Gameiro is caught offside.
Attempt missed. Yevhen Konoplyanka (Sevilla) right footed shot from outside the box misses to the right. Assisted by Vitolo.
Attempt missed. Vicente Iborra (Sevilla) left footed shot from the centre of the box is close, but misses to the left.
Attempt missed. Vicente Iborra (Sevilla) right footed shot from the centre of the box misses to the left. Assisted by Vitolo with a cross.