Players and staff from Germany's top two divisions have tested positive for the coronavirus in a potential blow to a swift return of the Bundesliga.
And former Chelsea striker Salomon Kalou has been suspended and forced to apologise after flouting social distancing rules at Hertha Berlin.
A total of 1,724 tests have been carried out on players from 36 clubs in the top two tiers of German football since last Thursday.
All the 10 individuals have been isolated and a second wave of tests to be conducted this week. Cologne announced on Friday that two players and a physio had tested positive and sent home but the club said there had been no new cases after more testing.