He joined from Hoffenheim in 2013 .
The 20 - year - old Selke , who won the European under - 19 Championship with Germany , has enjoyed a breakthrough campaign with six league goals in 23 matches and another three assists .
Selke joined from Hoffenheim in 2013 .
The 20 - year - old Selke , who won the European under - 19 Championship with Germany , has enjoyed a breakthrough campaign with six league goals in 23 matches and another three assists .