Bayern Munich have revealed defender Josip Stanisic has tested positive for coronavirus.
The Bundesliga champions on Thursday confirmed Stanisic, who is fully vaccinated, is isolating at home but feels "fine".
Stanisic came on as a substitute in Croatia's 1-0 World Cup qualifying win over Russia on Sunday.
It has been reported that another two Bayern employees have returned positive COVID-19 tests.
Stanisic's team-mate Niklas Sule withdrew from the Germany squad to face Liechtenstein and Armenia after he tested positive for the virus.
Joshua Kimmich, who has publicly confirmed he has not yet received either dose of his vaccine, was forced into isolation along with Serge Gnabry and Jamal Musiala due to being in close contact with Sule.
The Bavarian giants returned to Bundesliga action with a trip to Augsburg on Friday.