Deals of this size can collapse at any time and it is most likely contingent on United qualifying for the CL. Long way to go yet.
I don’t think CL is all that important in this deal. In fact I think people make a massive deal out of that aspect.
Put yourself in Sancho’s shoes. Your young with your career ahead of you, with the potential to play CL many many times before you retire,
*the potentially perfect club are after you with a guaranteed RW spot you can walk into,
*a manager who believes in playing youth.
*Top class players like Bruno and Pogba to work with as well as the potential to grow with other young England national team forwards in Rashford and Greenwood.
*You happen to be good mates with the some of the squad.
*Not to mention the money we offer will be as good (or usually) better than anywhere else.
Are you going to turn all that down for a potential kick about with Messi, Ronaldo and co with absolutely no guarantee of a trophy (in fact the opposite) ?