Chelsea face competition from Bayern Munich for Bayer Leverkusen defender Jonathan Tah.
Chelsea are keen on the Germany international, who's contract carries a buyout clause of 18m.
A move in January has been mooted, but Tah is also wanted by Bayern.
The defender has just changed agents. Tah is now represented by Pini Zahavi, which may indicate that a move is in the offing.
Now Bild's football editor Christian Falk states in the podcast "Bayern Insider" that Bayern is challenging for Tah's signature.
Bayern are keen to sign Tah with Thomas Tuchel said to be a big fan.
