Ronaldo has requested United listen to offers for him this summer.
The Athletic says Rangnick wanted to sell Ronaldo during the January transfer window as the forward was hindering what he was trying to implement at the club: a high-pressing side.
Rangnick reportedly asked football director John Murtough and chief executive officer Richard Arnold, via several emails and messages, to consider selling the Portuguese superstar as he felt convinced the No 7 wasn't a part of the club's long-term plans.
However, despite his pleas, the German was rebuffed.
And now United have no wish to sell Ronaldo and have yet to receive an enquiry. They have underlined that the striker remains under contract and hope that he sees that out.