Chelsea is in doubt after the defender was omitted from the match day squad for the Blues' 2-0 loss at the hands of reigning champions Liverpool.
Rudiger was also an unused substitute when Chelsea beat Brighton in their opening game of the season, suggesting his future is under threat.
Manager Frank Lampard has opted to start Kurt Zouma and Andreas Christensen ahead of Rudiger so far this season and the experienced Thiago Silva will soon be available to make his debut.
Rudiger was key to Chelsea luring in-demand forward Timo Werner to the club, with the pair firm friends after playing alongside each other for Stuttgart and the German national team."At the time when it was not clear I was coming here and I spoke to the manager and other.
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