Inaki's thunderous finish bamboozles Barcelona

Inaki Williams stunned Barcelona with a booming shot past Marc-Andre ter Stegen, capping a manic three-minute sequence in which Athletic Bilbao took a 2-0 lead over the Copa del Rey holder.

Williams struck the ball after Bilbao forced Barcelona's Jordi Alba to cough up possession, the home side's high press paying dividends.

Aritz Aduriz nodded in the first goal in the first leg of the last-16 tie, but it was Williams' effort that took the headlines.