Both United and Chelsea are stated to be lining up summer offers for the 20-year-old England winger, however his team-mate hopes he stays put.
Borussia Dortmund superstar Marco Reus has urged Jadon Sancho to snub interest from the Premier League and remain in Germany for at least some other season.
Manchester United and Chelsea are in opposition to sign the 20-year-old, with the Red Devils presently leading the pack, amid claims he is open to a return to England.
But Germany international Reus believes the winger have to remain put for the time being, predicting he will be ready for a big move in a year or two.
“He ought to stay one more, perhaps two years at Dortmund,” Reus told Sport Bild.
“In my view, there is presently nothing better for him. [Then he can] take the really big step. As an even more complete player who can proceed to develop with us as a regular in the team.”
Reus himself has managed to face up to the lure of bigger teams in latest years.
The attacking midfielder was beforehand linked with a move to Bayern Munich following his exploits for Borussia Monchengladbach and Dortmund, however he says his heart always lay at the Signal Iduna Park.
“The request came, as it did from other clubs. I have the biggest respect for Bayern Munich and what the club has been doing for decades,” he said.
“But I constantly wanted to play for BVB. It was constantly the club my heart drew me to. When I played in Gladbach at the time, it was clear to me: inside the Bundesliga, I would only change to Dortmund, in any other case I will go abroad.”
Thomas Muller signed an extended contract till 2023 at Bayern this week, matching the terms his fellow 30-year-old Reus has at Dortmund.
“I think it is additionally essential for the fans that there are guys like Thomas and me. They notice that we identify with their club as much as they do it themselves,” he said.
“It has continually been my dream to play for BVB. Here I have everything to be happy: my home, my family, my club.
“And this feeling has constantly prevailed – even if another country with a different culture would possibly have been attractive.”