However, for the player, any move to Old Trafford will hinge on whether United clinch European football for next season.
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The Mirror says Wharton features high on United's shopping list and they believe the England international can be signed for £70m.
A return to the Northwest would suit the former Blackburn Rovers prospect.
However, the 21 year-old feels ready to make the next step in his career, but will insist on moving to a major club which competes consistently in Europe.
Palace host United in today's early kickoff.