Manchester United are in the market for a centre-back this summer and have identified West Ham’s Diop as a player they would like to see in red next season.
The Hammers admit they would be willing to sell the Frenchman for £60m.
Diop is also reportedly keen on a move north seeing it as a progressive step in his career.
Diop only moved to London last summer when he left Toulouse in a £22m deal.
He played 33 times in the Premier League last term, including in his side’s 3-1 win over United in September.
The 22-year-old received plenty of praise from then Red Devils boss Jose Mourinho following that clash.
“Congratulations to the scout that found a 21-year-old kid Diop – a monster who dominated in the duels," the Portuguese boss said.
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