Athletic: Gorka Iraizoz; Iraola, San José,
Ustaritz, Castillo; Gurpegui (Susaeta 55'), Javi Martínez, Orbaiz, Yeste
(Muniain 46'); De Marcos (Toquero 65'), Llorente. 4-4-2.
Anderlecht: Proto; Guillet, Mazuch, Juhasz, Van Damme; Legear, Kouyaté, Biglia, Kanu; Lukaku (Sutter 79'), Boussoufa (Suárez 90'). 4-4-2.
0-1. 33. Biglia. Following up after Gorka Iraizoz spilled shot from Lukaku.
1-1. 57. San José. Poked shot in to net after Susaeta played in short corner.
Athletic Bilbao could also only draw 1-1 with Anderlecht in a match which was marred by crowd trouble between the two sets of supporters, who ended up fighting on the pitch after the final whistle. The Basque side went behind ten minutes before the interval when Gorka Iraizoz spilled a shot from Lukaku in to the path of Biglia. San José equalised a few minutes after the restart following a corner, but despite dominating after that, Athletic were unable to find the goal they needed to take the advantage in to next week's second leg.