Athletic Bilbao have been dumped out of the Copa del Rey in the fourth round on the away goals rule by Segunda Division B outfit Eibar.

The two sides played out a goalless draw in the first leg, but a 1-1 draw at the San Mames Stadium on Wednesday night was enough for lowly Eibar to pull off one of the shocks of this year's tournament.

The visitors landed the crucial blow in the 72nd minute when Mikel Arruabarrena converted from the penalty spot.

Aritz Aduriz levelled the tie on the night when he found the net in the dying minutes, but Bilbao were unable to find a vital second goal.