 Nyorai kuenderera mberi kweiyi ndima - Berni akatumidzwa zita kuSwitzerland U20 timu yenyika ye2018 World Junior Championships. Akatamba mitambo mishanu, asina kuwana poindi. Akaita zvekare timu ye2019 World Junior Championships, achitamba mitambo yese minomwe 2 inobatsira kubatsira Switzerland kupedzisa 4th mumutambo. Berni akatumidzwa kuchikwata che2020 World Junior Championships, mwaka wake wokupedzisira wokubvumirwa. 