Nick Kyrgios expects to regain full fitness before the US Open and is targeting a return to the tour at the Citi Open in Washington DC, which starts on July 29.

The Australian world No20 retired two sets into his Wimbledon first round against Pierre-Hugues Herbert due to a lingering hip injury and has been training and doing rehab work in Canberra to prepare for the upcoming North American hard-court.

Speaking on a visit to SCD American Vehicles in Queensland, Australia earlier this week, Kyrgios sounded optimistic about his physical condition and is confident he’ll be ready for the final Grand Slam of the season in New York next month.

“It’s one of my favourite tournaments, so I’m definitely going to be playing that,” Kyrgios said of the US Open.

“I’m working hard at the moment. Obviously just flew up for the day today, but I’ve been back home, putting my head down, doing all the right things to get healthy. I’m doing rehab every day, so I’m flying back after this, going back to Canberra and doing rehab every day.

“I’m aiming for Washington in a couple of weeks in the US, so if everything goes well and I keep doing it, there’s no reason why I can’t be playing healthy in the next couple of weeks.”

The 22-year-old will be joined by Dominic Thiem, Alexander “Sascha” Zverev, Lucas Pouille and Gael Monfils in the field in Washington DC, where he’ll be looking to get his season back on track after injury woes slowed down the strong momentum he had earlier in the year.

He is currently ranked 24 in the Race to London and is searching for a first title win in 2017.