Defending champion Roger Federer felt the success of his serve had contributed significantly in his straight sets victory over Swedish veteran Jonas Bjorkman at the Australian Open.
The number one seed, who comfortably disposed of Bjorn Phau in the first round, eased to a 6-2 6-3 6-2 triumph at the Rod Laver Arena.
“I think I was pretty much in control of the match today,” said the Swiss.
“I was a bit more consistent, especially on the serve. I started well and I felt like if I got my serve going it was going to be tough for Jonas.
“I didn’t give him so many chances like I did against Phau – I think it’s a bit of an improvement.”
Sixth seed Andy Roddick powered into the third round with a straightforward victory over Marc Gicquel.
The American, backed by his powerful first serve, set up a meeting with either former Champion Marat Safin or Dudi Sela with a 6-3 7-6 (7-4) 6-4 triumph at Melbourne Park.
“I’m always a little edgy in the first rounds,” Roddick admitted.
“Today, it felt like there was some good stuff.”
Juan Carlos Ferrero, the 24th seed, crashed out in the second round after suffering a 7-6 (7-0) 7-5 4-6 6-1 defeat by Thailand’s Danai Udomchoke, who will face Serbian world number 15 Novak Djokovic in round three.
Fourteenth seed Djokovic was a comfortable 6-2 7-5 6-1 winner over Feliciano Lopez.
The 19-year-old Serbian, who won the Adelaide International warm-up event earlier this month, showed his class against Lopez to set up a meeting with Thailand’s Danai Udomchoke, who defeated 24th seed Juan Carlos Ferrero 7-6 (7-0) 7-5 4-6 6-1.
Spain’s David Ferrer booked his place in the third round as the 16th seed beat Thomas Johansson 6-2 6-7 (5-7) 6-2 6-2, while 25th seed Mikhail Youzhny and 20th seed Radek Stepanek also secured safe passage to the last 32.
Frenchman Richard Gasquet, the 18th seed, won in straight sets against the USA’s Amer Delic while home favourite Wayne Arthurs was a 6-7 6-1 6-4 6-4 victor over another American, Zack Fleishman.
Slovakian Dominik Hrbaty and American Mardy Fish both progressed in four sets against Vincent Spadea and Nicholas Mahut respectively.