Stuttgart official news confirmed that Waltermad entered the transfer process.
Official announcement:
Stuttgart Football Club has received a transfer offer from a European club.
On the eve of the closing of the summer transfer window, Stuttgart Football Club received a transfer offer from a European club against Nick Waltermad. The relevant conditions of the offer prompted the club management to decide to suspend Waltermad's training and game tasks so that he can negotiate with the intended club on a potential transfer. The relevant decision is expected to be officially announced tomorrow Friday.
source:7m cn livescores