Julian Nagelsmann has revealed that Kai Havertz has suffered an injury setback as he continues his recovery from knee surgery earlier this season.
The Arsenal forward was injured in the opening week of Premier League action in August, and underwent a minor surgical procedure that has kept him out ever since.
But as Havertz has worked on building back his fitness, Gunners manager Mikel Arteta is thought to have been preparing to welcome the Germany international back into the squad after the November international break.