Thorgan Hazard has officially completed an emotional return to his boyhood club Lens, signing a long-term deal following his departure from Anderlecht. The Belgian international, brother of former Chelsea and Real Madrid icon Eden Hazard, returns to the Stade Bollaert-Delelis fourteen years after first breaking into the professional ranks with the club.

Exactly how much money have Borussia Dortmund spent on new players in this millennium?