Its no secret in the MMA world that Chael Sonnen has had a lot to say to UFC pound-for-pound great, Anderson Silva. Over the years Chael has accused Silva of being a coward, a puppet, a fraud, a phony, a liar, and has questioned his manhood, insulted his family, berated his mentors, and belittled his accomplishments....all in an effort to goad the long-time Middleweight Champion into a fight, one which Sonnen claimed Silva was ducking long before any of us even knew who Chael was. But now that that fight seems to finally be on the table, is Sonnen changing his toon? (spelling intentional.) In a special appearance on FUEL's "UFC TONIGHT" Chael read a letter that he wrote to Anderson expressing his regret for his disrespectful treatment of the sport's most renowned icon, and tenders his resignation. Surprising? Hear it for yourself below!