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Chelsea are considering a move for Hoffenheim defender Niklas Sule and have already made initial enquiries over a bid for the 21-year-old in summer 2017.
Wolfsburg coach Dieter Hecking is looking for defensive reinforcements after the 1-5 defeat against Dortmund. Danish centre-back Pierre Kanstrup from SonderjyskE is the leading candidate. Wolfsburg's scouts have been impressed by the 27-year-old.