"Unfortunately, I'm not able to play here this week in Connecticut," Bertens said in a video posted on Twitter. "I'm really sorry for the fans but hopefully I'll be back next year."
France's lucky loser Pauline Parmentier will replace Bertens in a first-round match against Estonian Anett Kontaveit later on Tuesday.
Bertens, however, remains in the doubles draw, the organisers said.
The Connecticut Open is the final tune-up event ahead of the U.S. Open, which begins on Aug. 27.
(Reporting by Hardik Vyas in Bengaluru; Editing by Toby Davis)
Share
