<prompt> Pedzisa mutsara unotevera: Roberts aiva nebasa rakabudirira zvikuru uye raiva nomukurumbira achiri muduku nokuda kwechikwata chenyika cheAustralia. Roberts akaita yake yepasi rose kutanga pa2009 FIBA Oceania Under-16 Championship muBrisbane, Australia, kwaakatora kumba Goridhe uye akachengetedza nzvimbo yeAustralia pamutambo wekutanga weUnder-17 World Championship gore rakatevera. Roberts aizoenderera mberi achimiririra Australia kuFIBA World Championship muFrance uko Australia yakaiswa yechinomwe. Munhangemutange iyi Roberts akaita avhareji yemapoinzi 16.1 pamutambo. Ipapo akachinjira kumiririri weGems pa  <response>: 2011 FIBA Under-19 World Championship muChile. Mumutambo uyu akanga ari iye akahwina zvibodzwa zvikuru mumutambo mumwe chete, achihwina zvibodzwa 41 achipesana neJapan. Pasinei zvapo neavhareji yemapoinzi 15,9 pamutambo mumwe nomumwe muboka rakasimba reAustralia, boka racho rakapotsa rawana ndarira, richiva rechina. 