The Frenchman is not with the team in Portugal currently. He was left out of the squad as he’s still out with a knee injury.
Here’s Barcelona’s official statement:
“After the PCR tests carried out on Thursday the first team player Samuel Umtiti has tested positive for Covid-19. The players is asymptomatic, is in good health and is isolating at home.
“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.”
Umtiti is the second Barca player to test positive this week. Jean-Clair Todibo is also isolating following a positive result after returning for pre-season this week.
Barcelona have also confirmed that Carles Alena is currently isolating because he’s “a close contact of a confirmed case of Covid-19.”