Fifth seed Stefanos Tsitsipas has become just the third man to come from two sets to love down to defeat Rafael Nadal, claiming a 3-6, 2-6, 7-6(4), 6-4, 7-5 victory over the second seed on Rod Laver Arena.
It was Nadal who came out firing, playing what some have described as some of his best tennis on hard court in years, claiming the opening two sets in just one hour and 18 minutes.
From that point onwards, it was a masterclass by the fifth seed Tsitsipas, who hit 0 double faults for the match and won 75 out of 84 points on serve in the third, fourth and fifth sets.
Tsitsipas hit just 18 unforced errors in the last three sets of the match, as well as an impressive 36 winners - a major improvement on his 20 unforced errors and just 13 winners in the opening two sets.
"Well, there weren't really many things that were going through my head. I was just enjoying the moment, and I wasn't really thinking of, I don't know, the future.
There wasn't really much to think of. What happened out on the court was spectacular by itself. Nothing really to describe it. You know, did the hard yakkas, as they say in Australia, I wasn't being a bludger, so it was going pretty well," Tsitsipas said following the match.
The Greek star is slowly but surely falling in love with Melbourne Park, and in particular, Rod Laver Arena.
"It brings back really good emotions and feelings.
Definitely, you know, I feel something extra, an extra connection with this court, with Rod Laver. I have had great moments, moments that just elevated me and moments that I will never forget. Rod Laver is one of my favourite arenas, courts. It's an amazing place to play tennis.
Every single year that I get to play in this court keeps getting better and better, and I'm glad that I get opportunity to play such beautiful courts with crowd that understands about tennis, and they bring in the atmosphere," Tsitsipas said.
The fifth seed will now face fourth seed Daniil Medvedev in a blockbuster semifinal clash on Friday.
It will be the pairs seventh meeting, with Tsitsipas winning just one of their previous six. However, Tsitsipas will go into the match with confidence, not only coming off this tremendous victory, but having also beaten Medvedev in their most recent meeting.