Novak Djokovic criticized the rules for late call-ups at the Olympics after his 6-0, 6-1 win over unranked Matthew Ebden, who replaced the injured Holger Rune. Djokovic argued that it was unfair and damaging to the sport's image to have a doubles specialist, who hadn't played singles in two years, as a replacement. He called for the ITF and Olympics to revise these rules.
