Serena Williams will continue her comeback next month at the National Bank Open in Toronto, Canada.
The 23-time grand slam singles champion played in her first singles tournament for a year at Wimbledon but did not commit on her future plans.
However, the American, 40, has signed up to play at one of the US Open warm-up tournaments, beginning on 8 August.
She has won the US Open six times but is currently unranked having not won a singles match for more than a year.
Williams returned to competitive tennis in the doubles at Eastbourne last month having not played since retiring injured from her first-round match at Wimbledon last year.
