When Manchester United signed Jadon Sancho from Borussia Dortmund back in 2021, Ole Gunnar Solskjaer said the forward had everything to become an Old Trafford legend. Just three years later, however, his time at the club is over after Chelsea agreed a loan deal with an obligation to buy on transfer deadline day. Sancho, to be kind, has underwhelmed at United. Certainly there have been precious few flashes of quality, with the forward a shadow of the electrifying winger that tore up the Bundesliga just a few years ago. At Chelsea, they’re hoping he can fare better. Sancho grew up supporting the…