Jack Draper has delayed his comeback from an arm injury in pulling out of this weekend's Ultimate Tennis Showdown (UTS) grand final in London.
The British number one has played just one singles matches since Wimbledon and had been hoping to continue his preparations for a January return to the tour.
However, the 23-year-old said in a social media post he has been advised to take more time rather than play in the event, which takes place at the Copper Box Arena from 5 to 7 December.
"I've been working hard to get ready for the UTS but frustratingly I'm just not quite ready," Draper said.