Mexican dwarf wrestler Microman (R) leaps into his opponent during a match at the Arena Mexico in Mexico City -- he is one of the smallest stars in the world of "lucha libre" He is just 90 centimeters (less than three feet) tall, but he packs muscles, power and swagger in a little frame: meet Microman, the smallest star in Mexican professional wrestling.Mexico's "lucha libre," a wildly popular mix of sport and entertainment, long featured midgets and dwarves in a deeply demeaning role: they were "mascotas" -- a word that can . . .