Manchester United have asked Chelsea about the availability of Christopher Nkunku, according to L'Equipe.
The France international is reportedly unsatisfied with his situation under Enzo Maresca, and is considering his future at Stamford Bridge.
The 26-year-old arrived at the club from RB Leipzig in a €60 million deal last year, but never really settled and was absent for several months due to injury.
He only made 31 appearances across all competitions, and has 13 goals and one assist.
Nkunku's deal with Chelsea expires in the summer of 2029.