Tournament director Kim Hall said in a statement on Monday that organizers "are disappointed for our fans." She added that "unfortunately injuries are a part of the sport."
Sharapova tumbled several times, complaining about court conditions, taking a medical timeout and later saying she thought she strained a hip muscle during the match at Wimbledon Championships.
Sharapova announced on her website Saturday that she had hired Jimmy Connors as her new coach, one day after she parted ways with Thomas Hogstedt.
The tournament, which includes singles and doubles players, runs from July 22-28.
(With agency Inputs)