Novak Djokovic wrote "Kosovo is the heart of Serbia, stop the violence" on camera after his first-round victory against Aleksandar Kovačević of the United States. Kosovo's Olympic Committee (KOK) called for disciplinary action against the tennis player.

KOK President Ismet Krasniqi wrote a letter to International Olympic Committee President Thomas Bach. "This is not the first time he has been provoked," said Kosovo Tennis Federation vice-president Jeton Hadjuniaj.