Whakakihia te rerenga e whai ake nei: I takaro a Jokubaitis mo Lithuania i te 2016 FIBA U16 European Championship i Poland. I whiwhi ia i te toharite 10 ngā tohu, ā, i āwhina i tana kapa ki te wikitōria i tētahi mētara hiriwa. Ko Jokubaitis te kaitākaro taitamariki i te
2017 FIBA Under-19 World Cup i Ihipa, he toharite 10 nga tohu me te 5.3 awhina mo ia keemu mo te kapa tuaono. I te 2018 FIBA U18 European Championship i Latvia, i toharite ia 12.9 tohu me te 5.6 rebounds ia keemu i te wa i mutu ai tana kapa i te tuarima. I arahi a Jokubaitis i a Lithuania ki te tuawha o nga waahi i te 2019 FIBA Under-19 World Cup i Kariki, i reira i toharite ai ia ki te 11.3 tohu me te 5.6 awhina mo ia keemu.