Eintracht Frankfurt manager Adi Hutter has said the sale of striker Sebastien Haller to West Ham is still not 100% certain.

The Hammers have reportedly lodged a €40m (£36m) bid for the Frenchman, and when asked about the forward’s future following the Bundesliga side’s 3-1 friendly win over Luzern on Friday, Hutter replied:

“It’s all about whether or not there is agreement when the clubs are put together. That’s all still in the balance.”

Haller is said to have been initially reluctant to make the move to the London Stadium but it seems he has become more open to the idea following talks.

The 25-year-old signed from FC Utrecht for €7m two years ago after impressing in the Dutch league. It took some time for him to establish himself at Frankfurt with his first campaign yielding just nine league goals.

Haller’s second season, though, was more productive, hitting the back of net 20 times in all competitions, as well as providing 12 assists in 41 appearances.

Frankfurt have already lost their other main striker, Luka Jovic, to Real Madrid this summer so the Hammers will have to work hard to persuade them to sell up.