BRISBANE, Australia (AFP) — Top seed Roger Federer barely broke a sweat as he breezed past German qualifier Tobias Kamke 6-2, 6-1 in the second round of the Brisbane International yesterday.

Federer, who had a first round bye, took just 55 minutes to see off Kamke, playing in the main draw of an ATP tournament for the first time since April.

The Swiss maestro had been suffering from the flu earlier in the week but showed no signs of illness in a commanding performance at the Pat Rafter Arena.

He asked organisers to put his first match back a day, and said he only started to feel better on Wednesday morning.

The defending champion smashed 18 winners past Kamke, who struggled from the outset against the world number three and only had one break point on Federer’s serve throughout the match.

Federer will next meet Bulgaria’s Grigor Dimitrov in the quarter-finals, a rematch from last year’s semi-final, which Federer won comfortably.

“I played great against him last year here,” Federer said.

“Tomorrow is going to be tougher. It’s been a rocky last couple of days and I don’t quite know what to expect quite yet.

“Today was thankfully short, but it also doesn’t give me as much information as where my game is at.

“In practice it’s been great — I have been hitting the ball well. I am where I want to be.

“Tomorrow we’ll see. He’s (Dimitrov) had a tough grind today, but he’s extremely match-tough. I expect him to be fresh again tomorrow. I played him quite aggressive last year and that worked well. We’ll see if I’ll do the same again tomorrow.”

Dimitrov earlier survived a three-set epic against Serbia’s Viktor Troicki 5-7, 7-6 (8/6), 6-2.

“I think I was definitely struggling a little bit at the beginning of the match,” he said.

“But it was good. It was a good match for me. That’s how I see it.

“And I’m happy that after two hours, 45 minutes my body felt really well. I took the heat pretty good.”

Fourth-seeded Canadian Milos Raonic was pushed all the way by Croatian qualifier Ivan Dodig before eventually winning 6-7 (2/7), 6-1, 6-4 in almost two and a half hours.

Raonic, who reached a career ranking of four last May, dropped back to 14 after injury problems later in the year saw him withdraw from the French Open then miss the last three weeks of the season.

He said he was finally playing injury-free for the first time in nine months.

“I’m further along than where I was (last year),” he said.

“I think I just sort of need matches like today to sort of reset myself.”

Raonic next takes on Lucas Pouille after the Frenchman ousted sixth-seeded Belgian David Goffin 7-6 (7/5), 4-6, 6-3.