Schalke warmed up for the visit of Chelsea in the Champions League on Tuesday by beating Wolfsburg 3-2.
Roberto Di Matteo faces his first real test at home since becoming Schalke coach when the Royal Blues host Wolfsburg.
Schalke say they are not interested in signing either Andre Schurrle or Lukas Podolski this winter.
Roberto Di Matteo feels Schalke are among the world's best clubs, but knows time might not be on his side to prove it.
Benedikt Howedes says the Schalke players are to blame for the inconsistencies which remain under Roberto Di Matteo.
Bayern Munich won to move seven points clear in the Bundesliga as a Werder Bremen win sent Borussia Dortmund bottom.
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