Roger Federer was forced to produce some of his best tennis to beat Takao Suzuki at the Australian Open.
The world number one beat the Japanese qualifier 6-3 6-4 6-4, but it was far from smooth sailing for Federer, who was almost matched shot-for-shot.
Suzuki broke Federer in the fifth game of the first set, before the Swiss star broke back and again in the eighth.
Federer worked hard to win the next two sets and now faces Finland's Jarkko Nieminen in the last 32 in Melbourne.
Andre Agassi showed no mercy as he crushed Rainer Schuettler 6-3 6-1 6-0 at the Australian Open.
In a repeat of the 2003 final in Melbourne, the 34-year-old had far too much for his German opponent.
Much to the displeasure of the crowd, Schuettler appeared to give up hope altogether as Agassi won 14 of the last 16 games, including the last nine.
Agassi goes on to face fellow American Taylor Dent and remains on course to meet Roger Federer in the last eight.
Fourth seed Marat Safin also wasted little time in booking his third-round place.
Last year's beaten finalist crushed Czech Bohdan Ulihrach 6-4 6-1 6-3.
The Russian dropped only three games in the first round and continued where he left off on Monday by blasting 37 winners past Ulihrach.
Safin faces a stern test of his title credentials in the next round where he faces dangerous Croat Mario Ancic, who easily saw off Germany's Bjorn Phau.
Germany's Tommy Haas saw a two-set lead slip away as he went out to Karol Beck.
The 16th seed was in control after taking a 7-5 6-2 lead.
But after losing the third set, Haas appeared to struggle in the 95 degrees heat and Beck fought back to secure a 5-7 2-6 6-2 7-6 6-3 victory.
Ivan Ljubicic, the 22nd seed, also went out in the second round, beaten 7-6 (7-1) 6-4 6-7 (2-7) 6-2 by Marcos Baghdatis of Cyprus.
French Open champion Gaston Gaudio avoided an upset against unseeded American Mardy Fish.
The Argentine came through 2-6 6-4 7-5 7-6 (7-4).
But former world junior number one Gael Monfils was easily beaten by Belgium's Olivier Rochus 6-1 6-3 6-3.
And Guillermo Garcia-Lopez's run came to an abrupt end in the second round.
Lopez stunned fifth seed Carlos Moya in his previous match but was easily beaten 6-2 6-4 6-2 by Kevin Kim of the United States on Wednesday.