CM Punk and The Undertaker are best remembered for their very good match at WrestleMania 29. But years before that, there'd been severe heat between the pair. It was 2009 and Punk was the World Heavyweight Champion. The WWE were on tour, and Punk wasn't really dressing as a champion should. Undertaker later took Punk to task on this, trying to tell him nicely that he should be dressing appropriately. Amazingly, Punk shot back with "what about John Cena?" Taker didn't like being answered back to, and he didn't like Punk comparing himself to the company's hottest star. As a result, Undertaker defeated Punk for the World title at Hell In A Cell, in what was only the opening match. It only lasted ten minutes. Punk's career then went to the gutter, before coming back to life in 2011. The lesson had to be learned, don't cross The Undertaker!
