Cape Town - Andy Murray has confirmed he is done with doubles tennis as he gives his full attention to trying to rebuild his singles career.

Murray opted not to take an available wildcard for the US Open singles draw, but will continue his comeback at Winston-Salem this week, where he will meet Tennys Sandgren in the first round.

Murray also decided to turn his back on the doubles at the US Open, and has now given a full explanation of that decision, describing his recent flirtation with doubles tennis firmly in the past tense.

"Doubles was really helpful and beneficial for me to get back on the court and feel what my body was going to be like," Murray explained.

"But once I started thinking about singles, it was just slowing things down a bit.

"The opportunity came up to play (in Winston-Salem) and from everyone I chatted to, they said it's a nice tournament. Very convenient, lots of practice courts.

"It felt like a smart move to come and play here before heading home.

"Hopefully I can get more than one match here and try to win my first singles match since coming back from the surgery."

Murray insists he is managing his expectations following his hip surgery.

"My expectations are very low. I'm not thinking about winning events like this just yet. I'm just trying to get matches," he added.

"I'm hoping that by the end of this year, I can start getting back to the best that I'll be. I just want to get through some matches and hopefully my body holds up well."