How Do Kit Numbers At The World Cup Work And What Do They Mean?

FIFA squads must use numbers 1–26, with No. 1 reserved for a goalkeeper — and players can’t change numbers once the tournament begins.
Kit numbers carry tradition: No. 9 for strikers, No. 10 for the creative star (Messi, Neymar, Modrić), and No. 7 famously linked to Ronaldo; Christian Pulisic has worn No. 10 since he was 17.
Fun USA tidbits: expected starter Matt Freese was given No. 24 while veteran Matt Turner wears No. 1, and captain Tim Ream will don No. 13 — neat small-talk fodder.