Mats Hummels is currently on the sidelines due to injury, and it appears that he will be sidelined for several months.
The German midfielder has been out injured since December 22nd, and it's expected that he won't return until the end of the season or even later in the year.
Hummels has been a key player for Dortmund this season, scoring two goals in six games so far,Campeonato Brasileiro Action but his absence could potentially cause a significant impact on their team's performance.
It remains to be seen how long he will be out, as Dortmund have struggled with injuries throughout the season. However, they should be hopeful that he will be able to make a full recovery soon and be back on the pitch for the next few months.