Australian Open day 12: Volatile Daniil Medvedev books Australian Open final against history-seeking Rafael Nadal — as it happened

Daniil Medvedev has overcome his own meltdown at the chair umpire and a determined Stefanos Tsitsipas to book an Australian Open final showdown with Rafael Nadal.

Earlier, Nadal beat Italian Matteo Berrettini 6-3, 6-2, 3-6, 6-1, bringing the Spaniard a step closer to a 21st grand slam title.

Look back on the day's play as it unfolded in the blog below.

By Paul Johnson

Daniil Medvedev has overcome his own meltdown at the chair umpire and a determined Stefanos Tsitsipas to book an Australian Open final against Rafael Nadal.

Medvedev defeated the Greek star in four sets 7-6 (7/5), 4-6, 6-4, 6-1 in just over 2.5 hours on Rod Laver Arena as he advanced to the Australian Open final.

Despite the final set rout the first three sets were played at the highest of levels and the match will be remembered for that and two other things: Medvedev's amazing serving performance, and a next-level meltdown at the chair umpire towards the end of the second set.

Medvedev, who has been serving well all tournament, took it to another level against Tsitispas and only lost two points on his serve throughout the entire opening set, which he eventually took in a tiebreak where he had to come from behind after losing the second point of it on his serve.

The second set was a little different.

Medvedev had a slight dip in the opening game and Tsitsipas pounced to break serve at just his second opportunity.

The Russian though fought hard and broke back at 3-all but while serving at 4-5, a pair of double faults cost him dearly and as the crowd cheered the second one, Medvedev made a gesture with his arm and racquet.

It got him a code violation from the chair.

Medvedev was enraged and let the umpire know it as he accused Tsitsipas of receiving coaching from