Thiem has not performed since struggling the harm on the Mallorca Open in June and the 28-year-old, who has slipped to fifteenth on the planet rankings, was unable to defend his 2020 US Open crown.
“I used to be trying ahead to creating my return to competitors at Abu Dhabi however I really feel that I’m but not able to compete on the highest degree,” Thiem stated in a press release.
“It is disappointing to not participate this yr however I must proceed my preparation for the upcoming season. I really hope to return to the Mubadala World Tennis Championship sooner or later.”
With Norway’s Casper Ruud additionally pulling out, Britain’s Dan Evans and American Taylor Fritz will participate as a substitute.
Britain’s US Open champion Emma Raducanu was compelled to tug out of the occasion on Monday after testing optimistic for Covid-19.
Organisers stated Tunisian Ons Jabeur, who rose to tenth within the girls’s rankings this yr, would take her place.