Boston Red Sox prospect Jeter Downs has been added to the team's player pool and will report to the alternate training site in Pawtucket, which will open this weekend. The 21-year-old was a key piece of the blockbuster trade which sent outfielder Mookie Betts and starting pitcher David Price to the Los Angeles Dodgers in February. Joining Downs as the recent additions to the player pool are center fielder Jarren Duranand pitchers Bryan Mata, Jay Groome and Tanner Houck. Other prospects that have...