Precious few teenagers dared to make an entrance remotely like George North’s two tries against the Springboks, evoking golden memories of another 18-year-old from another century, Keith Jarrett.

What the lad from Monmouth School achieved in running riot against England on a sunny Saturday afternoon at the Arms Park in April 1967 has long been enshrined as ‘Jarrett’s match’.
One more try to turn a narrow defeat into a heroic victory over South Africa, some 40 years later, and the boy George’s debut would have been elevated to the same venerated status.
Right now, he is rather more concerned a...