Lucas Paqueta will wear the number ten shirt for West Ham this season after previous occupant Manuel Lanzini left this summer.
The Brazilian playmaker, who made 41 appearances for the Hammers during his first campaign in England and assisted Jarrod Bowen's winner in the Europa Conference League final against Fiorentina in Prague, has switched from number 11.
That shirt will instead by worn by Italian striker Gianluca Scamacca, who was previously wearing the number seven. The 24-year-old scored eight goals in 27 games for West Ham wearing the number seven, which is now a free squad number.