Do you really think Levy will ignore £80 million (or thereabouts) because he refuses to sell to another PL club? That would be madness from a business point of view. How will the clubs shareholders feel about that, or the fans if they don't get Bruno or Le Celso due to lack of funds?
Not to mention there is no guarantee Eriksen won't sign for United if given the option in the winter anyway. With no £80 million transfer fee standing in the way, United will be able to dwarf any offer from Madrid or the like, as we did with Sanchez.