Roger Federer odds on claiming the US Open next month have been cut further after Novak Djokovic confirmed he would not be playing again this year.

The Serbian former world number one is suffering with an elbow problem which forced him out of Wimbledon and now he has confirmed he will miss the final ‘Slam’ of the year in America and will not play again this year in order to recover.

“All the doctors I’ve consulted, and all the specialists I have visited, in Serbia and all over the world, have agreed that this injury requires rest. A prolonged break from the sport is inevitable. I’ll do whatever it takes to recover,” he said.

“I will use the upcoming period to strengthen my body and also to improve certain tennis elements that I have not been able to work on over the past years, due to a demanding schedule. Five months may seem long from this point, but I’m sure they will pass quickly because there is so much I want to do.

I took time to make a decision about my recovery. Sorry for keeping you in the dark these days. Read more here https://t.co/tCSw46TOL2

— Novak Djokovic (@DjokerNole) July 26, 2017

As a result of Djokovic’s announcement Federer has been cut into 6/4 by Coral to win the US Open.

Rafael Nadal is second best in the firm’s list at 11/4 to secure his second Grand Slam of the year, while world number one Andy Murray is 11-2.

“Roger Federer was as big as 100-1 at the start of the year to win three Grand Slams in 2017 and even after his success in Melbourne, we had him at 20-1 to secure a hat trick in the major tournament,” said Coral’s John Hill.

“The 19-time Grand Slam winner looked back to his best at Wimbledon and it has been all one-way traffic for the Swiss player ahead of Flushing Meadows.”