For most of John Cena's WWE career, you couldn't see him being a bad guy on TV. Cena has won a record ... And why is Cena's heel turn such a big deal to wrestling fans? Morning Edition explored ...

John Cena could become WWE's most decorated world champion ever at WrestleMania this weekend. If he does it, it'll be as the bad guy – a role... John Cena's the bad guy in his final WrestleMania.

For most of John Cena's WWE career, you couldn't see him being a bad guy on TV. Cena has won a record 16 WWE world ... And why is Cena's heel turn such a big deal to wrestling fans? Morning Edition ...