Josh Percival was friends with Andrew Porter from the age of 12. As schoolboys, both were influenced by David Jones, a rugby coach and PE teacher at St Andrew’s College in Booterstown. A former mixed martial artist, he was renowned for his expertise in strength and conditioning. In his biography, Heart on my Sleeve, Porter acknowledges how Jones took him under his wing and taught him “what you put in is what you get out”, a mantra that put him on course for an international rugby career with Ireland.  Percival played hockey in secondary school but got injured in fifth…