Mats Hummels: “Borussia Dortmund a bigger team than when I was last here”

The arrivals of Thorgan Hazard, Julian Brandt and Nico Schulz helped persuade Mats Hummels return to Borussia Dortmund from Bayern Munich in the summer, although he says not too much has changed at the club, including Signal Iduna Park’s famous Yellow Wall. (English, photo: dpa)