According to BILD information, Sebastien Haller came well through another sugery two weeks ago.
It has been agreed with Dortmund that he will return to the training ground in Dortmund-Brackel and train as early as January.

🗞 @BILD #BVB pic.twitter.com/Q1wUlF8ZCL

— BVB Newsblog (@bvbnewsblog) December 19, 2022