UEFA Champions League on Twitter: "Mats Hummels back at the BVB Stadion Dortmund for the first time tonight since his move to Bayern. #UCL #BVBFCB https://t.co/WiU3ENkYfg" / Twitter
BVB's Mats Hummels Again Cuts Holes in Adidas Copa Boots - Footy Headlines
The Daily Bee: Mats Hummels Open to Contract Extension - Fear The Wall
Mats Hummels explains why he cut holes in his boots - JOE.co.uk
Mats Hummels: "I wouldn't extend with me right now"
A Stellar Performance: Mats Hummels - Sneakers Magazine
BVB's Mats Hummels Again Cuts Holes in Adidas Copa Boots - Footy Headlines
The reason why Hummels cut holes in his boots against Dortmund
Dortmund vs Tottenham - as it happened: Pierre-Emerick Aubameyang and Marco Reus dent Spurs' hopes | The Independent | The Independent
Mats Hummels cuts holes in his boots to help injured toes | Sporting News