Djordje Djokovic dealing with fallout from Adria Tour.
Coric the second player to test positive for Covid-19.
Dimitrov and Coric tested positive for coronavirus.
Grigor Dimitrov revealed he had tested positive on Sunday.
Novak Djokovic adds two more names.
Croatian putting past behind him.
Borna Coric made to battle.
Roger Federer up and running on grass in 2019.
Borna Coric had his work cut out for him.