Valetini began his professional career in Melbourne with the Melbourne Rising, and trained with the full Rebels side.[4] Following a knee injury, he moved to Spain to represent Valladolid RAC but returned due to the COVID-19 pandemic and another knee injury.[5] In 2022, he joined Manly, where he impressed.[6] He was picked up by the Drua on a short-term contract during the 2023 Super Rugby Pacific season,[7] and made his debut in Round 3 of the season against the Crusaders,[8] where he kicked the winning penalty to seal the victory.[9]