Man United are likely to be one of a number of clubs in the battle for Haaland next year, with the 21-year-old expected to move on ahead of the 2022-23 campaign.
However, according to AS, Rangnick, who is on the verge of becoming Man United's new interim manager, could help the 20-time English champions sign the in-demand youngster.
Rangnick played a key role in Red Bull Salzburg acquiring Haaland from Molde in 2019, and the 63-year-old is expected to move into a consultancy role at Old Trafford once his manager's contract has expired in May.
Haaland - also linked with Manchester City, Chelsea, Bayern Munich and Barcelona - has scored 70 goals and registered 19 assists in 69 appearances for BVB since making the move from Salzburg. body check tags ::