Athletic Bilbao goalkeeper Kepa Arrizabalaga has suffered a foot fracture.

Spanish media said the 23-year-old, who has been linked with a move to Real Madrid, would be ruled out for about three weeks.

"The tests carried out showed an incomplete fracture at the base of the second metatarsal in the right foot, caused by repetitive micro-traumas," Bilbao said in a statement.

The injury was not the result of a particular incident but due to the series of micro-traumas suffered over time.

Kepa's current contract expires at the end of this season.