Brocklebank was a late-comer to rugby, first showing interest into the sport at the age of 16. initially a back row, Brocklebank played his first games for Ormskirk Rugby Club and
Myerscough College. After beginning his studies at
Durham University, Brocklebank was spotted by
Newcastle Falcons and represented the club's A-League team in 2014/15 before signing with the Falcons' senior academy the following summer. He was awarded a senior contract in February 2017, to begin the following season after the end of his degree. In his new role as a prop, Brocklebank has represented both
England Counties U18s and England Students. He made his first team debut during the 2016–2017 season. ==References==