Pogba is expected to quit United at the end of this season and AS says his priority destination is Madrid.
"Pogba would prioritise Madrid," a source close to the player is quoted.
The midfielder's deal has just over a year to run, though United have an unilateral option to extend that by 12 months.
But the source warned: "They would only get the player angry and have him unhappy for another year."
While Juve are also in talks with Pogba's agent, Mino Raiola, it's claimed the Italian is determined to place the Frenchman at Real. Alphonso Areola apart, Raiola has never had a major player at Real Madrid.