The 23-year-old forward, who has emerged as one of Ligue 1’s brightest stars, has also caught the attention of Arsenal and Liverpool.
According to the Daily Express, United have identified the Ivorian as a potential replacement for Romelu Lukaku, whose future at Old Trafford looks increasingly uncertain.
Lukaku is expected to follow Paul Pogba out of the Old Trafford exit door this summer, with Juventus and Inter Milan both reportedly keen on luring the striker to Italy.
Pepe has taken Ligue 1 by storm this season, with only Paris Saint-Germain’s Kylian Mbappe ahead of him in the goalscoring charts.