The win was also significant because that is the first time he has beaten a top-10 player at a Grand Slam before.
His girlfriend Morgan Riddle had promised, in a video on Instagram Live, to eat a whole jar of Vegemite if he beat Tsitsipas.
“I told them I was going to win,” he said. “My girlfriend (Morgan Riddle) said I was too confident going into the match.”He continued: “Yeah, this is a big jar (but a bet’s a bet).
Riddle then jokingly indicated that she wanted to eat a smaller jar than the one Fritz had in his hand.
He then added: “I won’t be partaking, but I’ll make sure it happens… I wasn’t the biggest fan.”
Speaking about the match itself, he added: “I trusted my shots a lot. I served well the whole match.