Juan Martin del Potro (25/1 – US Open Outright) insists the worst times are behind him after the latest injury setback but he is unsure when he will be back in competitive action.

The Argentine looked on course for great things in the tennis world after winning the tournament at Flushing Meadows in 2009 but most of his time has been spent away from the court ever since.

Issues with both of his wrists have been the problem and the 26-year-old underwent a fourth operation back in March in the hope of fixing the troublesome injury.

Initial signs are looking positive for the 2013 Wimbledon semi-finalist but Del Potro admits he has decided on a specific comeback date.

“The hardest moments of my career are gone, those in which I didn’t know what I would do next,” he wrote on Facebook on Thursday. “I’ve already told you the discomfort of being unable to do what I like and the suffering of watching tennis on TV.

“Today is a different story. I have great expectations for a new stage that began this week. Today I am more committed than ever to trying to come back. No more doubts or question marks. A new career for me starts today.

“I don’t know how long it will take, I do not know at what level I will play, but I hope to be with you on the tour again.”

Del Potro has not played in a Grand Slam event since the 2014 Australian Open but there are slim hopes he could return in time for the US Open, which starts August 31.

World number one Novak Djokovic is the favourite to lift the title at 6/5 while British number one Andy Murray is following closely behind at 9/2.

  •  
  •  
  •  
  •  
  •