Marco Hernandez and his .859 OPS, good defense, and good baserunning was sent down to make room for Moreland, who was 0 for 13 on his rehab assignment but surely is ready to jump right into the lineup anyway.
https://www.masslive.com/redsox/2019/07/boston-red-sox-roster-moves-marco-hernandez-859-ops-optioned-to-pawtucket-mitch-moreland-returns.html
https://www.masslive.com/redsox/2019/07/boston-red-sox-roster-moves-marco-hernandez-859-ops-optioned-to-pawtucket-mitch-moreland-returns.html