"The first team players Pedri and Ferran Torres have tested positive for COVID-19. The players are in good health and self-isolating at home," Barcelona said in a statement.
The positive cases were reported to the Spanish health authorities.
Torres, Barcelona's new signing from Manchester City, was at Camp Nou Stadium as the 21-year-old winger was presented to the fans earlier Monday.
A press conference was also held for Torres. The Spanish player appeared with club executives including Barcelona president Joan Laporta at the media event.
Torres then joined the team's training session.
