Sky Germany reports that Mats Hummels will miss Dortmund's game against Köln.
|Mats Hummels.||Photo: Steffen Prößdorf, CC BY-SA 4.0|
According to Sky Germany, the experienced centre-back will miss out due to a cold.
Dortmund are hoping that Hummels will be available again for their Champions League clash with Sevilla on Wednesday.
Niklas Süle is expected to deputize for him against Köln today.