But because he took the first major steps of his senior career in Germany with Borussia Dortmund, not all United supporters will have seen the 21-year-old play on too many occasions.
So what better way to find out what to expect from the Reds’ new star than to catch up with a United fan that has watched Sancho closely since he joined Dortmund way back in 2017?
We caught up with freelance football journalist (and MUFC regular) Matt Ford, who is an expert on German football, to do just that…
Hi Matt, you’re a Red that watches the Bundesliga in a professional capacity week in, week out – what kind of player are United getting?