CM Punk is one of the strongest characters in the WWE, the face and heart of the company and he's going to prove he deserves the distinction against Chris Jericho at WrestleMania 28.
He certainly has the mettle to do it.
So what is mettle?
Mettle is courage. It's fortitude. It's gumption.
Look the word up and you'll find synonyms like ardor, caliber, energy, fire and force. Mettle is spirit. Mettle is stamina, valor and moxie.
It's backbone.
No one can deny CM Punk has backbone. No one can say he lacks the fire and the moxie of a champion.
On April 1 at WrestleMania, Punk i...
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