In an RTÉ radio interview, Johnny stated that at a fight one evening in his native County Meath, a spectator advised his mother that Johnny would make a good jockey, citing his small size, weight, good balance, sense of rhythm, and courage. His mother wrote to the Racing Academy and Centre of Education (RACE) in County Kildare, a school for apprentice jockeys, and got a two-week trial for her son. After persuasion by friends, he joined. He was one of 26 successful candidates who progressed onto the RACE 10-month course.