The promotional tour includes stops in cities such as Washington D.C., Chicago, Miami and Mexico City, and is jumpstarting the hype ahead of one of boxing???s most anticipated bouts in recent memory.Mayweather, 36, is unbeaten in 44 fights with the last a unanimous 12-round decision over Robert Guerrero on May 4 in defense of his 147-pound title.???The Earth is my turf,??? Mayweather said. ???You