![Champions League: Borussia Dortmund undone by Mats Hummels red card | Sports | German football and major international sports news | DW | 03.11.2021 Champions League: Borussia Dortmund undone by Mats Hummels red card | Sports | German football and major international sports news | DW | 03.11.2021](https://static.dw.com/image/59714164_303.jpg)
Champions League: Borussia Dortmund undone by Mats Hummels red card | Sports | German football and major international sports news | DW | 03.11.2021
![Furious Mats Hummels slams Michael Oliver after controversial Champions League red card - Mirror Online Furious Mats Hummels slams Michael Oliver after controversial Champions League red card - Mirror Online](https://i2-prod.mirror.co.uk/incoming/article25375483.ece/ALTERNATES/s615b/0_Champions-League-Group-C-Borussia-Dortmund-v-Ajax-Amsterdam.jpg)
Furious Mats Hummels slams Michael Oliver after controversial Champions League red card - Mirror Online
![Erling Haaland warned 'be aware, grass isn't always greener' by Mats Hummels amid Man Utd and City transfer speculation Erling Haaland warned 'be aware, grass isn't always greener' by Mats Hummels amid Man Utd and City transfer speculation](https://www.thesun.co.uk/wp-content/uploads/2021/10/81e6f706-3557-4043-8b2b-3956f8cbaf7e.jpg)
Erling Haaland warned 'be aware, grass isn't always greener' by Mats Hummels amid Man Utd and City transfer speculation
![Opinion: Potential rewards outweigh risks in Mats Hummels′ Borussia Dortmund deal | Opinion | DW | 19.06.2019 Opinion: Potential rewards outweigh risks in Mats Hummels′ Borussia Dortmund deal | Opinion | DW | 19.06.2019](https://static.dw.com/image/49264679_303.jpg)
Opinion: Potential rewards outweigh risks in Mats Hummels′ Borussia Dortmund deal | Opinion | DW | 19.06.2019
![Dortmund's Mats Hummels denies 'promise' to join Manchester United | Manchester United | The Guardian Dortmund's Mats Hummels denies 'promise' to join Manchester United | Manchester United | The Guardian](https://i.guim.co.uk/img/static/sys-images/Guardian/Pix/pictures/2015/4/1/1427877361389/Mats-Hummels-009.jpg?width=1200&height=630&quality=85&auto=format&fit=crop&overlay-align=bottom%2Cleft&overlay-width=100p&overlay-base64=L2ltZy9zdGF0aWMvb3ZlcmxheXMvdGctYWdlLTIwMTUucG5n&s=29ffffc94666bd9817fa4507d1af9d6f)