Novak Djokovic has had so-so results in the run-up to the US Open, but he is not concerned. In fact, he is riding high as a newly-wed and a soon-to-be father.

The 27-year-old Serb tied the knot with his sweetheart Jelena Ristic four days after winning the Wimbledon trophy last month and with fatherhood looming he knows his life will be forever changed.

“Without a doubt, life changes. You know, priorities change,” Djokovic told reporters ahead of today’s start of the US Open, the last grand slam of the season.

“My priorities, my family, my wife, my future kid. You know, tennis is definitely not number one anymore.”

That is not to say the seven-times grand slam winner is taking his tennis lightly. The proud champion, who thrives on the hard court, aims to make the most of the prime years ahead of him.

“I’m feeling better and better as the days go by. Obviously, I want to peak with my form in the US Open,” said Djokovic, who has reached the US final four years in a row, claiming the title in 2011.

“I have high expectations for myself. Especially at this stage of my career where I feel like now is the time that I’m at my peak physical strength,” he said.

“I want to use this time of my career as much as I can to win as many matches as possible.”

Federer’s advice

Federer, seeded second behind Djokovic for the US Open, said he has chatted with the Serb about family life – an issue in which Federer is an expert after his wife Mirka gave birth in May to their second set of twins, who all travel together on the tennis road.

“I have spoken to him a little bit in the past,” said the 33-year-old Swiss.

“It’s normal when you’re entering the whole family thing... all you talk about is babies and how to prepare for it mentally.

“I think he must be quite excited about what’s going to happen soon.”