West Ham United have expressed concern over the future of Dimitri Payet at the East London club, according to reports.
The 29-year-old, currently playing at Euro 2016 with host nation France, has won plaudits for his performances and goals for Les Bleus.
According to The Mirror, Chelsea are monitoring Payet's situation, but it is the interest of Spanish giants Real Madrid that is likely to cause more alarm for the Hammers directors.
Payet joined West Ham last summer from Marseille for £10.7m, and was rewarded with a new five-and-a-half year deal in February.
