Boston Red Sox shortstop prospect Jeter Downs showcased his massive potential in his spring debut on Sunday against the Twins, going 2-for-2 with a home run and three RBI. Downs is MLB.com's 49th-best prospect, and he grades out at least average in all of the five major tools. Given that Downs has only 13 career game above Single-A ball, he will almost certainly start the year in the minors, but if second baseman/utility manKike Hernandez struggles in his first ever starting opportunity, look ...