WATCH the ATP Tour LIVE in Australia on beIN SPORTS | Sign up here

Medvedev was pushed all the way to a first-set tie-break but took the opener, spurred on by an electric atmosphere on Court Suzanne Lenglen, before storming through the second.

Machac, who shocked Novak Djokovic in the Geneva Open semi-final last week, refused to back down, and soared through the third set, but he could not hold on to his building momentum.

With the prospect of a deciding set creeping closer, Medvedev rallied and held off a stubborn Machac, gaining a decisive break in the 10th game of the final set before a mistake from the Czech gifted him the victory.

Medvedev, who is chasing a second Major, will face either Alex de Minaur or Jan-Lennard Struff in the fourth round.

He has a win percentage of 76 per cent on clay since 2023 in ATP events, compared to just 44 per cent on the same surface between 2016 and 2022.

The world No.5 has now reached the Round of 16 for the 15th time in his career at grand slams; only Marat Safin, Mikhail Youzhny and Yevgeny Kafelnikov have reached the fourth round more often in grand slams events among Russians.