The club's record goalscorer aims to be a part of boss Ole Gunnar Solskjaer's staff.
Roo, 33, is under contract with DC United until the end of 2020 — but is said to be weighing up his future options.
And a source told The Sun: “Wayne is already looking to the future and wants to remain in the game.
"He also wants to keep his family together and to do what is best for Coleen and their boys.
“So a job at United would be perfect. Wayne would like to one day move into coaching.
"Long-term, he would love to be a part of what Ole is creating."
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