Real Madrid have confirmed that captain Sergio Ramos has tested positive for coronavirus.
Ramos is currently sidelined with a calf injury picked up on international duty, which forced him to miss last week's 3-1 win against Liverpool in the first leg of their Champions League quarter-final.
The return leg at Anfield is on Wednesday.
Fellow centre-back Raphael Varane also missed the victory over Jurgen Klopp's side after he also tested positive for the virus.
Real are already without Lucas Vazquez, who damaged his posterior knee ligament against Barcelona. That injury is set to rule him for the rest of the season.
The Spanish giants also confirmed the news that Florentino Perez has been elected club president for a sixth term.
Perez, 74, was unopposed in the election, which was called last week and declared him winner on Tuesday.
A statement on the club's official website read: "The ceremony to declare Florentino Perez as president of Real Madrid CF and its Board of Directors took place (on Tuesday) morning at Real Madrid City."
The club added: "Florentino Perez is now facing his sixth term as president of Real Madrid, until 2025."
Perez has served as president for 12 consecutive years since taking over from Ramon Calderon in June 2009 and also held the post from 2000 to 2006.