Midfield: Felix Nmecha, Marcel Sabitzer, Julian Brandt
We aren't likely to see any big changes to the Borussia Dortmund midfield three, even if Marcel Sabitzer has been dealing with an injury himself and had to take some painkillers to play on Tuesday.
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Felix Nmecha has been in fine form of late and will look to celebrate his call-up to the Germany national team with another strong performance in the heart of the Borussia Dortmund midfield against Mainz this weekend.
Julian Brandt is also back in the Germany squad and will be eager to set the tone for Borussia Dortmund on Saturday. His playmaking skills will be crucial against a Mainz side that will likely defend deep.