The 21-year-old winger nearly joined Leeds United in January and even underwent a medical on deadline day before Swansea backed out of the agreement with the Whites.
Once James completes the medical, he will sign a contract with Manchester United and become Ole Gunnar Solskjaer's first signing of the summer. With James back in the worldwide fold this week, after telling Ryan Giggs, the Wales manager, that he felt up to joining up with the squad, the wheels were set in motion for his transfer to go through.
Nevertheless, it seems that the Red Devils see this as the most appropriate time to make the move.
"Daniel has successfully completed a medical at the Aon Training Complex".
Manchester United finished sixth in the Premier League, five points adrift of the top four, and will play in next season's Europa League.
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James spent seven years at Hull's academy before leaving for Swansea as a 16-year-old in the summer of 2014.
Giggs remains upbeat that James has the ability to succeed in the English topflight.
Here's everything you need to know about James to Man Utd.
"The transfer breaking down with Leeds was well documented".
He is on global duty with Wales and started for Ryan Giggs' side on Saturday away against World Cup finalists Croatia.
The 21-year-old has been granted permission by Wales manager Ryan Giggs to leave their base near Chester.