The 32-year-old Ivory Coast international hasn’t had his best year with Toulouse and wants to leave this summer.
LA Galaxy and Seattle Sounders ‘are in talks’ for Gradel, but a first offer from America has been rejected by Gradel’s camp.
The Toulouse captain, who is under contract until 2021, also has interest from Al-Ettifaq in Saudi Arabia.
Al-Ettifaq were keen on Gradel last summer and have again shown interest in the Abidjan native.
Gradel has a verbal agreement with Toulouse to let him leave if they are relegated to Ligue 2 – which they have been.
Since returning to France from Bournemouth, Gradel has made 94 appearances for Les Violets, scoring 28 goals.