You’ve read all of your free items this month. To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in. Advertising Age Article Abstract The Story Behind Sports Illustrated's Big LeBron James Exclusive Magazine's Ad Sellers Didn't Know Before Its Publication By Michael Sebastian, Published on July 11, 2014 0 Want more Access, Content & Connections? Upgrade to Membership. We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today. Become a Member Already a member? Log in.