Athletic Club will lose two of its mainstay forwards, Nico Williams and Inaki Williams, in the second leg of the Europa League semifinal against Manchester United, which will be played at Old Trafford.
The Williams brothers are out injured and have not travelled with coach Ernesto Velverde to England, as confirmed by the squad list they have taken for the second leg of the Europa League semi-final.
Nico has been out since last weekend's Basque derby against Real Sociedad, while his older brother Inaki was withdrawn in the 62nd minute of the goalless draw.
The club, also known as Athletic Bilbao, has not yet provided an official statement regarding Nico's condition, but Inaki is confirmed to be absent due to a thigh injury.
Nico has been out since last weekend's Basque derby against Real Sociedad, while his older brother Inaki Williams was withdrawn in the 62nd minute of the goalless draw.