http://www.dailymail.co.uk/news/article-1059237/Newcastle-United-tycoon-Mike-Ashley-lost-300m-HBOS-bet.html
From 2008, and the daily mail (I know) but the headline alone shows that, yeah, Mikey likes a flutter or two.
Liking a flutter or two isnt being 'involved in gambling' Nigh on everyone likes a bet tbh.
http://www.telegraph.co.uk/news/newstopics/howaboutthat/1926636/Newcastle-boss-Mike-Ashley-wins-1.3m-on-roulette-spin.html
Should play it Russian-style with Roman Abramovich next time round.