Sancho had previously rejected a move to Roma, but is now open to joining Aston Villa. Manchester United wants to sell Sancho outright, but is willing to accept a loan deal as they need to offload him before the transfer deadline.
The situation suggests that Sancho is likely to join Villa on loan, with the option to buy him permanently later. This would allow both Villa and Sancho to assess his performance and make a decision on a permanent transfer in the future.