Is a @KKiermaier39 breakout possible? Maybe it's already happening, writes FanGraphs' @Travis_Sawchik. READ //… twitter.com/i/web/status/8…

Is a @KKiermaier39 breakout possible? Maybe it's already happening, writes FanGraphs' @Travis_Sawchik.READ //… twitter.com/i/web/status/8…