Iker Muniain will be sidelined for a period expected to last "between six and seven months" due to a "tear to the anterior cruciate ligament in his left knee" which was diagnosed after he was subjected to medical tests today, Tuesday.

The Spaniard was injured in Saturday's game between Sevilla and Athletic and had to be stretchered off the Sánchez Pizjuán pitch with his leg immobilised and the player clearly in great pain.

Following a preliminary examination, he was diagnosed with a "sprain" and remarks by both Ernesto Valverde and some of his teammates alluding to Muniain's mood and how he was feeling in the hours after the game suggested that the injury was not that serious.

Confirmation that he will be out for an extended period means that Athletic have now lost two players for the cup final against Barcelona on 30th May, with Óscar de Marcos ruled out through suspension.