World No. 19 Grigor Dimitrov and No. 33 Borna Coric both announced they had tested positive for Covid-19 after playing in the Adria Tour tournament in Zadar, Croatia, which was organized by Djokovic and swiftly canceled following Dimitrov's positive test.
Djokovic's agent Elena Cappellaro told CNN that the Serb has been tested and is awaiting the results, while his fitness coach Marco Panichi has tested positive but is showing no symptoms.
The world No. 1 was set to play Andrey Rublev in Sunday's final in Zadar, Croatia, before the cancellation was announced.