Rubuta ci gaba ga wannan sakin layi - Miller ya wakilci Kanada a wasu wasanni na kasa da kasa. A watan Yulin 2017, ya fafata a tawagar Kanada wacce ta lashe lambar zinare a gasar cin kofin duniya ta FIBA U19
Ka yi haƙuri. Miller yana da maki 1.6 da 1.7 a kowane wasa. A watan Yunin 2018, ya kasance babban mabuɗin ga ƙungiyar Kanada wanda ya ci lambar azurfa a Gasar FIBA U18 ta Amurka. Miller yana da matsakaicin maki 17.3, 7.3 rebounds, 1.5 taimaka da 1.2 sata a kowane wasa. A wasan kusa da na karshe da suka yi da Puerto Rico, ya zira kwallaye 31 da kuma 14 da aka dawo da su.