Christian Wetklo is suspended and will be replaced by Heinz Müller or Loris Karius.
Radoslav Zabavnik and Junior Diaz compete for the spot at left-back.
Julian Baumgartlinger returns from suspension to start in defensive midfield.
Shawn Parker and Nicolai Müller compete for the spot alongside Adám Szalai up front.
Gladbach are three games without a loss and, after a draw at Schalke, another result at home could lift them into the top half of the table again. Some players might be a bit tired after another Europa League week though.
Mainz are in very good form at the moment. After two impressive wins against Frankfurt and Hannover, they are sixth in the table and want to keep that spot, heading into the winter break.
Expect this to be a competitive game from the outset. Both teams have been in solid form lately.
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