Athletic Bilbao looked to put their Europa League tie with Inter Baku to bed as they dominated the first half of the second leg.
Ager Aketxe nearly put the visitors in front with a low shot only for Salahat Agayev to parry it wide.
Shortly after, Inter had the ball in the back of the net following a corner but Rauf Aliyev was judged offside in the build-up to the goal.
Bilbao continued to dominate possession and it nearly paid off when Javier Eraso's shot from the edge of the box hit the bar.
Mirhuseyn Seyidov came closest for Inter as his powerful drive from outside the area went narrowly wide of the top corner.
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