Disparity between Premier League & Bundesliga exemplified by Hummels’ return to Dortmund

The return of Mats Hummels to Borussia Dortmund's Signal Iduna Park highlights the widening gap between those long regarded as Bundesliga elite and their Premier League counterparts. Television money and restrictive, although hardly egregious, ownership rules designed to ensure fans remain as such in the eyes of the clubs they support, and not assets from…