Athletic Bilbao will be without Fernando Llorente for two weeks after tests revealed he has suffered strained knee ligaments.
The striker was named in the squad to face Atletico Madrid on Sunday but withdrew on the day of the game after jarring his knee in training.
And although there were initial fears the problem could be more serious, an MRI scan has revealed the injury is only a minor one.
It has been an eventful couple of weeks for the 27-year-old, who agreed to join Juventus on a four-year-deal when his contract at San Mames expires at the end of the season.
Llorente has been out of favour for large periods of the campaign after making clear his intention not to renew his contract with Athletic.
Coach Marcelo Bielsa has since opted to use him sparingly and he has just two goals in 22 appearances this season.