Nyorai kuenderera mberi kweiyi ndima - Mobley akatambira United States ku2018 FIBA Under-17 World Cup muArgentina. Mumitambo minomwe, akaenzana 9.3 mapoinzi, 5.6 rebounds uye 2.6 anobatsira pamutambo, achibatsira timu yake kuhwina menduru yegoridhe. Mobley akabatana neUnited States ku2019 FIBA Under-19 World Cup
muHeraklion, kuGreece, asi akanga asingakwanisi kutamba mitambo miviri chete uye maminitsi manomwe mumutambo wacho nemhaka yokurwara musana. Chikwata chake chakakunda menduru yegoridhe pasinei nokusavapo kwake.