Athletic Bilbao playmaker Iker Muniain is reportedly a doubt for next month's Copa del Rey final.
The 22-year-old was stretchered off during last night's 2-0 defeat to Sevilla with a knee injury.
Although there has been no official confirmation from the club, the youngster could now miss the clash against Barcelona on Saturday, May 30, according to Sport.
Muniain has made 41 appearances in all competitions this term, from which he has scored two goals.