The third seed was second best through two sets but won two tie-breaks before clinching a 5-7 3-6 7-6 (4) 7-6 (5) 6-3 victory after midnight on Rod Laver Arena.

It capped a dramatic day of tennis following Jannik Sinner’s upset of Novak Djokovic in the other semi-final to guarantee a first-time champion at Melbourne Park.

Having lost to Djokovic in 2021 and Rafael Nadal from two sets up in 2022, Medvedev will hope this is finally his year.

“I was a little bit lost but during the third set I started saying that, if I lose this match, I want to be proud of myself, I want to fight for every point,” he said. “I’m very proud.”

The Russian, who will contest a sixth slam final, trailed Emil Ruusuvuori by two sets in the second round in a contest that finished at 3.39am, and also needed five sets to defeat Hubert Hurkacz in a gruelling quarter-final.

Zverev came through two five-set matches in his first four rounds, winning deciding tie-breaks against Lukas Klein and Cameron Norrie, but stepped up a gear to knock out Carlos Alcaraz in the quarter-finals and continued in the same vein here.

Five double faults from Medvedev contributed to two breaks of serve in his opening three games but Zverev was unable to capitalise on his lead, Medvedev breaking the sixth seed when he served for the set as the rallies became longer and longer.

Zverev broke again in the 11th game and this time managed to make it across the line, with one 51-shot rally leaving both men gasping for air.

There were four hours and 17 minutes on the clock when a Zverev backhand over the baseline gave Medvedev his first match point, and moments later he was able to celebrate another remarkable win.