The Red Sox are both buyers and sellers at the trade deadline. First, they trade Christian Vazquez to the Astros, a seller move:

The seasonal age 23 Valdez is hitting for quite a bit of power in the minors this year, while Wilyer, also 23, is doing a great job of getting on base.

Then the Red Sox turn around and acquire Tommy Pham from the Reds for a future player. Pham represents a possible replacement for J.D. Martinez, who may get traded as well.

Update: The Red Sox also picked up a catcher:

McGuire’s BA, OBP, and slugging percentage this season are all between .225 and .285.