They ignited the Kia Arena court for more than two hours.
The Kyrgios-Kokkinakis pair have been performing in doubles since the start of the tournament.
This Tuesday, they won against the Puetz-Venus pair, 7-5, 3-6, 6-3.
But a child was shot in the head by Australian Nick Kyrgios.
Shortly after the start of the match (fourth game), Thanasi Kokkinakis served, but play was stopped after the referee signaled a let on the Australian's first serve.
At the net, Nick Kyrgios performs a smash in the direction of the public.
After a bounce, the ball ends up in the face of a spectator.
In this case, a young child alongside his mother.
Kyrgios rushed to apologize to the young man in tears.
After a moment of hesitation, the Australian went to get a racket from his bag to offer it to his young supporter in the side stand of the Kia Arena.
The public greeted this gesture by standing up and applauding their player.
Nick Kyrgios knows how to make amends with his young fans.
Qualified for the semi-finals, the Kokkinakis-Kyrgios pair will face the number 3 seeds, namely the Spaniard Marcel Granollers and the Argentinian Horacio Zeballos.