Barcelona's Sergi Roberto has tested positive for coronavirus, the LaLiga club have announced.
Roberto, who suffered a thigh injury against Atletico Madrid last month, was already set to be out of action until January.
Barca reported on Wednesday that Roberto "is in good health and is isolating at home".
Their statement added: "The club has informed the relevant sports and health authorities, and all those who had contact with the player were tracked via further PCR tests."
Right-back Roberto had started seven of the Blaugrana's eight league games prior to his injury, despite the signing of Sergino Dest from Ajax.
Dest started ahead of Roberto for October's Clasico, which Real Madrid won 3-1.
The Spain international – also capable of playing in midfield – has scored once in LaLiga this term, providing two assists from 10 chances created.