Hannover 96 defender Timo Hubers has been tested positive for COVID-19.
It was believed that he attended an event where he learned he was in contact with another person who had tested positive.
The club say that their 23-year-old centre-back has not had any contact with his team-mates since the event and he remains in quarantine, showing no symptoms so far.
Hannover’s entire squad and coaching staff are also being tested, though they are continuing to train as usual.
Hannover will face Dynamo Dresden on Sunday but Hubers will not be available for the game.
Hubers himself had only recently returned to action following a knee injury that kept him out until February, and he has so far playing for three consecutive games.
The Bundesliga has already confirmed a large number of games will be played behind closed doors across the top two divisions, though Hannover’s match is not one of them.