World Number One Novak Djokovic is not sure about when he will return to court.
The Serb is trying to recover from a shoulder injury that forced him to retire during his fourth-round match at the US Open against Stan Wawrinka.
Djokovic said: “
I would like to tell when I will be back, but I do not really exactly know. I check the results of my rehabilitation on a daily basis. I check the way shoulder reacts to my recovery. Unfortunately, the injury is more serious than I imagined. I was sad for not continuing in New York, it's one of the four major tournaments, so important during the second half of the season."
The Serb also revealed he brought a physiotherapist with him in Serbia and he feels optimistic about the future.