Washington, Aug 10: With his new twins on tow on their first overseas road trip at age two weeks, Roger Federer has all the inspiration he needs to ramp up his tennis as he returns to the courts for the next week's Montreal Masters.

"Motivation is not a problem, I'm so excited to be back," said the world number one Sunday as he got ready for action five weeks after winning Wimbledon and a fortnight and three days after the birth of his daughters.

"I've been training really hard (near Zurich) for the past few weeks. That's why I'm back, otherwise I'd be stuck at home doing something else besides training and answering questions and playing matches."

Federer has plenty to prove at the first hardcourt Masters prior to the Aug 31 start of the US Open, the major he is aiming to win for a sixth consecutive edition. In Canada a year ago he lost in his opening match to Frenchman Gilles Simon.

"I feel ready to go, fresh and in the mood to travel again, that's an important part," said the player who turned 28 Saturday and celebrated in Montreal with his new family. "I don't mind the travelling.

"If you dislike that part, it all becomes so much harder. I don't have that problem."

Federer, who consulted doctors along with wife Mirka Vavrinec as to the suitability of taking the twins over the Atlantic in a private jet at such a young age, was happy to get the medical all-clear for mothers and daughters.

"I'm excited to see how I'm going to handle the new family situation," said the number one who claimed French Open and Wimbledon crowns over the summer. "Going forward to the US Open will be an exciting stretch."

He said that family responsibilities will likely lift a weight from his shoulders.

"The family can help by taking pressure off my tennis game. I've been under pressure for many many years. This could help a lot mentally."

He said that he got a laugh at speculation the day after the July 23rd birth of Charlene Riva and Myla Rose that they were already being tipped to one day win Wimbledon.

"I wouldn't mind if they wanted to play tennis, but we wouldn't push them. It's not our goal to make them tennis machines.

"It's about them being happy and us giving them as much love as we can. Then we see where it takes us."