Dear old Jason Leonard, who learned a thing or two about the realities of rugby at the sharp end over the 119-cap stretch of a record-breaking international career, recalls every last detail of his first tutorial with the Argentine arch-scrummager Diego Cash, in the way a generation of England footballers remember being schooled by a slightly more prominent Buenos Aires folk hero carrying the same Christian name.
“He knocked all the cockiness out of me,” says Jason, who encountered Cash in the second Test of England’s visit to Puma territory in 1990.
It was a challenging trip, one way or an...