Like Wilkinson, Johnny Sexton must tackle his instincts

With renewed focus on concussion, there are contrasting cultures in the northern and southern hemispheres in that the approach here is to seek ‘collisions’ while the emphasis down there is to avoid ‘contact’, writes Brendan O’Brien

No Six Nations this week, but the media abhors a vacuum just as much as Mother Nature.

Contract signings and extensions have kept the pot boiling as we negotiate the stretch between Ireland’s engagements in Paris and London. So too is the renewed focus on concussion with Leinster’s Hayden Triggs and former Scotland international Johnnie Beattie doing more than most to focus attention on the game’s biggest issue.