Did you know that the torpedo kick as used in Rugby Union in NZ is said to have been inspired by a Maori school kid seeing his American teacher throwing a ball with the spin for added accuracy... not sure if that is an urban legend or not... but I do think there is a lot of bleed of on and off field strategies between codes... maybe more at the coaching and training level... I know the Aussie Rules teams have taken on board the professionalism and strength training of the America Football teams...