Chambers, 32, has been a divisive figure in British athletics since his return in 2006 from his two-year doping ban and subsequent forays into AmericanFootball and rugby league.
American aficionados of rugby union can only dream of the Croesian sums of money that are lavished on Americanfootball, a sport that vaguely resembles rugby in wimpish armour-plating.
Rugby may never challenge Americanfootball in popularity here, but it might just serve as a remedy for those football fans who suffer from post-season traumatic withdrawal disorder.
Keirle has been impressed by the atmosphere at the Centurylink Field stadium where the Seattle Seahawks Americanfootball team play, and inside Twickenham for England rugby matches.