Young guns Jannik Sinner, Frances Tiafoe and Denis Shapovalov have led a batch of seeded title hopefuls through to the Australian Open second round at Melbourne Park.
Sinner was the first big-name seed to progress on day one with a thumping win over returning former semi-finalist Kyle Edmund.
The world No.16 crushed Edmund 6-4 6-0 6-2 in less than two hours on Monday.
With Australian super coach Darren Cahill in his corner, Sinner showed no mercy against Edmund, who is still in the infancy of a comeback from a knee injury that sidelined the 2018 Open semi-finalist for 22 months.
He broke the Brit seven times, dropped his own serve only once and clubbed 24 clean winners to Edmund's 10.
Sinner returned to Melbourne after a breakout season at the grand slams in 2022, reaching the quarter-finals of the Australian Open, Wimbledon and US Open and also the second week in Paris.
Standing in the 21-year-old's path to another last-eight run could be third seed Stefanos Tsitsipas in the fourth round.
Next up for Sinner on Wednesday, though, will be Argentine Tomas Martin Etcheverry.
Fresh off helping Team USA to the United Cup trophy with an unbeaten campaign in the new mixed-gender teams' event, 16th seed Tiafoe progressed with a 6-3 6-3 6-7 (5-7) 7-6 (8-6) win over German Daniel Altmaier.
Shapovalov, seeded 20th, eased past Serbian Dusan Lajovic 6-4 4-6 6-4 6-1.
Among the other notable challengers to defending champion Rafael Nadal and nine-times winner Novak Djokovic, US Open semi-finalist Karen Khachanov, 10th seed Hubert Hurkacz and 11th seed Cameron Norrie also advanced.
Khachanov dispatched Bernabe Zapata Miralles 7-6 (7-3) 6-2 6-0 and next plays inspired Australian Jason Kubler, a 6-4 6-4 6-4 winner over Sebastian Baez.
Hurkacz scored a similarly dominant 7-6 (7-1) 6-2 6-2 victory over Pedro Martinez.
Norrie, a semi-finalist at Wimbledon last year and finalist last week in Auckland, moved on with a 7-6 (7-3) 6-0 6-3 win over Luca Van Assche, a teenage reciprocal wildcard from France.
Nadal opened his title defence with a 7-5 2-6 6-1 6-4 win over Britain's cramping world No.38 Jack Draper, while third seed Tsitsipas beat Frenchman Quentin Halys 6-3 6-4 7-6 (8-6) in his opener.