Happy father VS Tennis superstar

Roger Federer's flawless tennis will be a family affair from the start of the ATP Montreal Masters this week straight through to the US Open and beyond, the new father of twins said on Sunday.

"It has been great so far," Federer said as he prepares for his second-round start after a bye at the first major tuneup for the US Open, which starts Aug 31.

"We are very happy and proud being parents of two such beautiful little girls right now," Federer said, speaking for wife Mirka and his two twins - Charlene Riva and Myla Rose - born July 23 in Zurich.

"They're so sweet and cute right now, I'm enjoying every moment."

Federer and family flew privately across the Atlantic on Friday, with the world No 1 squeezing in an evening training session that drew applause from spectators waiting around the grounds to get a look at their idol.

"Mirka is a great great mom and I'm happy they could join us on this trip," said Federer.

"We'll be five weeks in North America and I'm sure we will have a good time."

The Swiss superstar said the five weeks he took off after winning a sixth Wimbledon title, waiting for the birth and then resuming his "normal" life were well worth it.

But he admitted he now needs the thrill of competition.

"I'm happy to be back on Tour and I'm happy Mirka was willing to join the long trip," Federer said.

"Mirka was completely cool about coming over here. We did checks to make sure that the babies were going to be fine with the trip and so was Mirka.

"I don't need nine or 10 hours of sleep per night like I used to earlier in my career," said the Swiss, who turned 28 on Saturday. "I can take six or seven hours and you can nap also.

"I feel ready to go, fresh and in the mood to travel again. That's an important part. I don't mind the travelling. If you dislike that part it all becomes so much harder.

"I don't have the problem and I love the game as much as anyone out there."

The 15-time Grand Slam champion is eager to see how it all pans out.

"I'm excited to see how I'm going to handle the new family situation," he said. "Going forward to the Open will be an exciting stretch for us."

(Edit: Ruby)