Kokkinakis’ mistake came at a crucial moment in the deciding set, allowing Bolt to flee a 2-6 6-4 6-3 winner after abandoning the first set of the game.
With Bolt holding a break point and a 3-2 lead in the final set, Kokkinakis oddly left a ball that landed on the line thinking it was going to fly over the baseline.
He immediately realized his mistake, scratching his head with his hands but that was all Bolt needed.
Great Australian tennis player Todd Woodbridge was in disbelief at Kokkinakis’ decision not to play ball on the baseline.
“My God, what a mistake,” he said of Nine’s comment.
“I’m pretty sure Kokkinakis thought it would come out and then saw him land on the line,” his co-commentator added.
Bolt was extremely ruthless from that point on, winning the next two games to consolidate his break before serving the game with aplomb.