The agent of Nikola Vlasic says he's fully committed to West Ham.
But Tonci Martic insists Vlasic is happy at London stadium.
"In no case," Martic told Sport24, "will he return.
"Vlašić is doing well at West Ham and the club doesn't want to let him go anywhere."
Vlašić has one goal and two assists in 18 appearances for West Ham this season.