Hailing from Church Village, Callum Bradbury played for Pontypridd Schools under 15s and Coleg y Cymoedd, also for the Blues age grade and academy squads.
Developing into a towering 6ft 6in second row Callum was capped by Wales at youth and under 20 level and was allocated for a while to Pontypridd from the regional academy, his appearances limited to only four before being moved to Cardiff.
Callum Bradbury: Lock 4 appearances 2017