Questions have been raised about restarting the German football season in May after three people at the FC Cologne team tested positive for COVID-19.
In a statement, the club said three people tested positive after the entire team and coaching staff underwent COVID-19 screening.
The three - who are all symptom free - will be placed under 14-day home quarantine.
"Cologne will not confirm any names out of respect for the privacy of those affected," the club added in their statement.
While Bundesliga clubs have returned to training in small groups, it will take another week until an official announcement about the football season will be made.


Afghanistan seal 2027 World Cup berth, West Indies to go through qualifiers again
Rain in Montreal forces Canadian Open to reschedule men's quarter-finals
Swiatek cruises past Shnaider to reach Canadian Open semi-finals
UEFA, AFC, CONCACAF hit out at Infantino over World Cup stake sale
Malawi book first-ever place at Women's World Cup
