20 July 2012 Last updated at 11:36

Northampton Saints' Nick Johnston prepares for 'toughest' league

Northampton Saints performance director Nick Johnston tells BBC Northampton that the Aviva Premiership is "the longest and the most attritional" league in the world.

He believes that someone looking from outside the sport would regard them as playing "probably too much rugby."

But to improve the players' fitness, Johnston says he pushes them hard, admitting "if I'm popular, I'm not doing my job".