Manchester United transfer news: Mats Hummels 'tells team-mates' his Borussia Dortmund exit is on the verge of being sealed | The Independent | The Independent
Off the Crossbar: Cologne Alone — Borussia Dortmund's Mats Hummels gone and forgotten - Bavarian Football Works
Mats Hummels explains why he ultimately chose to return to Borussia Dortmund - Bavarian Football Works
Bayern Munich Alumni: Mats Hummels wants difficult Champions League draw for Borussia Dortmund - Bavarian Football Works
Borussia Dortmund without Mats Hummels for Bundesliga game against FC Köln | OneFootball