digg_url = ‘http://zonersports.com/2010/04/hbo-hard-knocks-jinx-lives-on/’; The Madden curse. The SI cover jinx. Anything at all to do with the Cubs. I’m adding to the sports jinx library. For your consideration: HBO’s Hard Knocks. It was just over a year ago when we wrote those words, and 2009 brought us yet another “Hard Knocks” jinx. But first, let’s [...]