Barcelona center-back Samuel Umtiti has tested positive for COVID-19, the club confirmed Friday prior to its Champions League quarterfinal tie.

Umtiti, 26, missed Barcelona's last seven matches in all competitions with a knee concern, and he's "asymptomatic, is in good health, and is isolating at home," according to the club.

"The club has informed the relevant sporting and health authorities as well as tracing all the people who have had contact with the player so that they can undergo the corresponding PCR tests," the team added in its statement.

Barcelona are in Lisbon for the revised knockout stages of the Champions League, where they'll face tournament favorites Bayern Munich at the Estadio da Luz.

The squad and staff were tested to meet compliance before leaving for the Portuguese capital, all returning negative results.