Elbow injury could sideline Djokovic

New York - Former world No 1 Novak Djokovic is in doubt for the US Open due to his elbow injury, Serbian media reported, citing the country's Davis Cup team doctor. 

Djokovic retired hurt during the quarter-finals at Wimbledon and said he was considering taking a break from playing to recover from the long-standing injury to his right elbow. 

Serbia's Sportski Zurnal reported that the 30-year-old could face up to 12 weeks on the sidelines.

"He has a bruised bone due to excessive playing," it quoted Zdenko Milinkovic as saying. 

"Novak is in Toronto undergoing some further tests with specialists." 

The 12-times grand slam champion won the US Open in 2011 and 2015. This year's tournament begins on August 28.