Its name and façade don't scream boxing fame. There's no crowded parking lot or windows showing sweat-drenched talent pounding on a heavy bag. But, unassuming as it is off Louisiana Street in eastern McKinney, Barney and Me Boxing Gym is …
JUST A GUESS, but I don't believe WBC welterweight champion Floyd Mayweather Jr. - the slickster who has been named Fighter of the Year for 2007 by the Boxing Writers Association of America - would be Jack McKinney's most admired practitioner of the…