Manchester United could end up getting offered a tempting swap deal in return for a talent who is set to be sold this summer. Heading into the summer transfer window, Manchester United are expected to be willing to sanction some big sales in order to fund a rebuild of some kind. Already, this summer has seen both Anthony Martial and Raphael Varane confirm they’ll be heading for the exit doors when their contracts expire next month. On top of this, Casemiro is expected to be sold along with a few others who aren’t in the plans at Old Trafford anymore. Now, one potential sale has been linked wit…