VfB Stuttgart management are tightlipped on a buyout clause in the contract of Serhou Guirassy.

The striker is interesting Everton and West Ham United.

Sports director Fabian Wohlgemuth told Sport1: “I am not allowed to comment on contractual content.

"We'll see what happens in the future. We will definitely try everything to ensure that he stays for a long time."

Next summer, Guirassy's contract is said to see a €20m clause come into effect - a price below market value given the striker's current form (ten league goals in six games).