In a comparison of 1971 and 2009 Lions tours, conducted in conjunction with ESPNScrum, the Independent on Sunday reveals rugby is now a collision sport for muscular hulks.
"The extraordinary transformation from the stamina-based rugby of the game's amateur era to the physically combative version served up by today's professionals is illustrated by The Independent on Sunday today in a unique comparison between this year's Lions tour and the trip to New Zealand in 1971.
"The desperate plea for change made by Lions doctor James Robson at the end of the tour to South Africa in July, when the Scotsman warned that players were getting too big and muscular for their own good, is borne out by our exclusive statistical and subjective analysis. By comparing key indicators between the Second Test of the 1971 tour in Christchurch and the Second Test in Pretoria in 2009, the anecdotal theory that rugby has become a collision sport for muscular hulks is revealed as hard fact."