By Sean Walsh Matthijs de Ligt is in line for a reunion with former Ajax boss Erik ten Hag at Manchester United. The defender’s days at Bayern Munich seem numbered, and the Red Devils are making concerted efforts to bring him to Old Trafford. If De Ligt does swap Bavaria for the north west of England, what shirt number could he take? Here’s all you need to know about De Ligt’s favourite shirt numbers, those on offer at United right now and more. Matthijs de Ligt shirt number historyUnlike another Dutchman on his way to United this summer (*cough* Joshua Zirkzee *cough*), De Ligt hasn’t been to…