The Daily Star says United are waiting for AC Milan to give De Jong the green light to fly to Manchester today to complete a £10m deal.
United have turned to the Dutchman after being frustrated in talks for midfielders Arturo Vidal and William Carvalho.
United chiefs have discussed deals with Juventus and Sporting Lisbon to sign their prized assets.
But they will only push on and take their interest further if a late swoop to sign De Jong fails.
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