Roger Federer and Andre Agassi cruised into the second round of the Australian Open today but fifth seed Carlos Moya crashed out.
Federer began the defence of his title in ominous fashion with a ruthless demolition of Fabrice Santoro.
The Swiss star took just and hour and 33 minutes to thrash the Frenchman for the loss of just four games, easing into the second round with a 6-1 6-1 6-2 victory.
Agassi was not quite as emphatic but still looked in good form as he eased injury worries with a 6-4 6-3 6-0 victory over German qualifier Dieter Kindlmann.
But Moya, a potential semi-final opponent for Federer, was dumped out in four sets by Spanish qualifier Guillermo Garcia-Lopez.
Playing only his second grand slam, the 21-year-old world number 106 recorded the shock of the tournament so far with a 7-5 6-3 3-6 6-3 victory.
Earlier in the day Federer, a red-hot favourite to win in Melbourne, declared himself satisfied with his 23rd consecutive victory.
"It was good, a good start," said the 23-year-old. "I think the start of the match was important for me, you know. That set the tone for the rest.
"And I never really gave him a chance to get back into the match. Best-of-five, an easy three-setter sometimes they look very, very easy, but I always had the feeling I still had to play some good points to win them, especially against him.
"He gets back a lot of balls. But I'm happy with my performance, and that's what counts in the end."
Agassi pulled out of an exhibition match against Andy Roddick last week with a tendon injury but was cleared to play after an MRI scan and declared himself happy with his fitness.
The 34-year-old, scheduled to face Federer in the quarter-finals, said: "Today I woke up feeling the best yet since it's happened.
"And with the assurance that I'm not going to sort of pull anything bad, I had the green light to push through anything I might be feeling.
"And that's what I did, I just pushed through a bit of stiffness, and then I felt like it loosened up nicely and I was okay."
PA