Britain's Andy Murray swept past home hope Sam Groth to reach the third round at the Australian Open.
The Scot, seeded number two, dismantled the Australian's big serve to win 6-0 6-4 6-1 in one hour and 30 minutes.
Groth, 28, has the fastest serve ever recorded to his name at 163mph, but was broken in his first four service games as Murray totally dominated.
Murray, 28, moves into the last 32 where he will face Portugal's Joao Sousa for the third time in four years.
Fellow Briton Johanna Konta earlier beat China's Zheng Saisai 6-2 6-3 to reach the third round in the women's draw.