The ex-Ireland hooker and Springboks coach is so dedicated to his craft he wrote the thesis for his Master's degree on the science of lineout throwing.
Jerry Flannery has highlighted a facet of play which will be crucial when the Springboks host the Wallabies in Saturday's Rugby Championship Test in Johannesburg.
New Springbok assistant coaches Tony Brown and Jerry Flannery have settled into their new environment as the Boks look to evolve their playing style in 2024.
Rassie Erasmus is back as Springboks head coach, while Duane Vermeulen, Tony Brown, Jerry Flannery and Jaco Peyper have also been added to the backroom staff.
A deep dive into the Springboks coaching structures including Rassie Erasmus' return with Tony Brown, Duane Vermeulen, Jaco Peyper and Tony Brown joining.
