Does anyone really think Utd would be stupid enough to go ahead with the deal without first being sure they've sorted everything with Spurs?
Not just Utd, it would be crazy for any club to do business that way.
If he doesn't get his own way he'll play like a turd until January, and he'll be hated by the Spurs fans. In their best interests to let him go tbh, he plays rubbish when he's in a strop.