Hertha BSC sporting director Arne Friedrich has confirmed the club are in advanced negotiations with highly-rated youngster Luca Netz over a new deal.
"We are in very, very good talks and have contact," Friedrich told Sky.
"Luca is a very important player in our plans, and he feels that, too."
Netz has attracted interest from Bayern München after breaking into Hertha's first team this season, but Kicker has previously reported that he would prefer to stay and sign a new deal.
The young left-back has made eight appearances for Hertha's senior side, scoring once.