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 How Nike and Pepsi Hijacked the World Cup Ambush Marketing 101: Tips to Protect Your Brand -- or Steal Someone Else's Thunder By Keith Richman, Published on June 11, 2010 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. Register Now Already a member? Log in.