Manchester United loanee Jadon Sancho has had a slow start to life back in the Bundesliga and now he’s been slated by a German legend. 23-year-old Jadon Sancho has had a nightmarish campaign which began with his public spat with Erik ten Hag in September. With no repair in their relationship imminent, Manchester United sent the winger back to Borussia Dortmund where he’d either raise his value or come back a more confident and in-form player. But with his current form leaving much to be desired, he’s been criticised by legendary German Lothar Matthaus. Lothar Matthaus slams Jadon SanchoManches…