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Lucy Nicholson / Reuters
It's like Donald Trump's mythical locker room just came to life.
Subtlety isn't the Irishman's strong suit.
JOHN GURZINSKI via Getty Images
Prepare for two solid months of world class trash talk.
LAS VEGAS, Sept 12 (Reuters) - Floyd Mayweather Jr. signed off from professional boxing as he had planned on Saturday, going out unbeaten and on his own terms as 'The Best Ever' after improving his ca...