Novak Djokovic continued his bid for a record-extending 11th Australian Open title with a confident win over American 12th seed Taylor Fritz to reach the semi-finals.
The 36-year-old Serb, also going for a standalone record 25th major, won 7-6 (7-3) 4-6 6-2 6-3 in a hot Melbourne.
Djokovic has not lost here since 2018, winning his past 33 singles matches.
He will play either Italian fourth seed Jannik Sinner or Russian fifth seed Andrey Rublev for a place in the final.
Their quarter-final is not likely to finish until the early hours of Wednesday morning after the night session was pushed back to after 20:45 local time.
With the singles matches on Rod Laver Arena not starting until 13:00, Coco Gauff's win over Marta Kostyuk in the women's quarter-finals took over three hours before Djokovic needed almost four hours to beat Fritz.
Sinner and Rublev still have to wait for defending women's champion Aryna Sabalenka's match against Barbora Krejcikova to be completed before they can go on court.
They will, however, at least have an extra day to recover, with the men's semi-finals taking place on Friday.
