Chelsea are stepping up interest in Bayern Munich defender Niklas Sule.
Chelsea are being linked with three Bayern defenders this week - Sule, Jerome Boateng and David Alaba.
However, Abendzeitung reports it is Sule that Chelsea are most serious about, with new manager Thomas Tuchel recommending his signing.
The defender feels comfortable in the team and is trusted by the head coach Hans-Dieter Flick.
However, everything could be decided by Bayern's intentions over new contract talks.
