Federer sees no reason to cull ATP season

Roger Federer is unconcerned by the recent spate of injuries that have robbed the US Open of a number of high-profile men's seeds.

Roger Federer has had his share of injury concerns as he nears the end of his stellar tennis career. (AAP)

A grinding ATP schedule is not responsible for the rash of injuries among top men's contenders currently blighting this year's US Open, according to Roger Federer.

But the 36-year-old Federer, himself off a half year of physical rehabilitation in 2016 for a knee injury, says it's just bad luck -- and the advancing age of top players -- that's leaving the field so empty.

"I believe it's just that the guys who are hurt lately, it's mostly because they are 30-plus," the 19-time grand slam champion said.

"Wear and tear just takes its toll.

The missing this year include: Andy Murray, Novak Djokovic, Stan Wawrinka, Kei Nishikori and Milos Raonic.

"Maybe some players have just had enough of playing hurt and told just themselves, 'when I come back I just want to be 100 per cent'.

"Not always playing be at 85, 90, 95 per cent. It's just not fun this way.

"Nishikori and Raonic have had some injuries as of late.

"It's always been a bit of come and go with them.

"So I guess they just really want to figure it out now, and they also both have been hurt, so I hope they will be back strong again.

"But, for the most part, I think it's the age more than anything."

Swiss star Federer has no interest in calls to shorten a season, which can run for 11 months in some circumstances.

"I don't think there needs to be that much addressing, because the players, they have the option not to play as much as sometimes they have to or want to," he said.

"I don't think the tour is doing much wrong, to be quite honest."

Federer, chasing a sixth US Open crown, will be playing at Flushing Meadows after skipping a week to deal with back pain but says he's back in good shape and ready for the grand slam battles to come.

"Two weeks after the (Montreal) finals (which he lost to Alexander Zverev) is a long time, so because you've got two weeks you can take your time (to rehabilitate)," the world No.3 said.