Mezue ahịrịokwu a: Wembanyama nọchitere anya France na 2019 FIBA U16 European Championship na Udine, Italy. Na 80<unk>78 quarterfinal mmeri megide Croatia, o dekọtara ihe 12, 21 rebounds na asatọ blocks. Wembanyama nwere akara itoolu, 9.6 rebounds na egwuregwu na-eduga 5.3 blocks kwa egwuregwu, na-eduga France na ọlaọcha ọla ọcha ma na-enweta asọmpi egwuregwu niile. Ọ gbara asọmpi na
2021 FIBA Under-19 Basketball World Cup na Latvia. Wembanyama nwere akara 14, 7.4 rebounds na 5.7 blocks kwa egwuregwu, ma kpọọ ya na ndị otu egwuregwu niile mgbe o duru France na ọla ọcha. O dekọtara akara iri abụọ na abụọ, asatọ rebounds na asatọ blocks na 83 na 81 mmeri nke United States na njedebe. Wembanyama setịpụrụ ihe ndekọ FIBA maka igbochi kwa egwuregwu na otu asọmpi.