Manchester United have identified Amadou Haidara as a possible long-term replacement for Nemanja Matic, according to reports.
The Serbia international is under contract at Old Trafford until 2023, but he will be 34 years old by the time next season gets under way.
That publication cites two England internationals, Declan Rice and Jude Bellingham, as United's top targets.
Rangnick played an instrumental role in Leipzig's rise to the Bundesliga, and his connections with the club could help United secure the signature of Haidara.
However, Rangnick does not expect the Red Devils to be overly busy in next month's transfer market.
The German believes January is a difficult time to do business, while he has previously stated that United's squad is bigger than he would ordinarily like.
"From my experience, winter is not the best time for sustainable transfers," Rangnick said.
"With the quality of players we have here, it would in theory only make sense if you can get players who can guarantee you more quality. From experience, this will be difficult in the winter."
Subscribe to FourFourTwo today and save over a third on standard price.
