The replay revolution began on June 2, 2010. On a warm spring evening in Detroit, Armando Galarraga was on the verge of doing something that only 20 players had accomplished in 130 years of Major League Baseball. Galarraga had retired 26 consecutive Cleveland hitters. He was one out away from a perfect game. The ballpark was just 43 percent full that night, but as Indians’ shortstop Jason Donald stepped to the plate, Comerica Park was full of life.