The Red Sox recalled Grissom from Triple-A Worcester on Friday.
Grissom will take the spot on the 28-man roster vacated by Rob Refsnyder, who was placed on the 10-day injured list due to a right forearm strain. Since being optioned to Worcester on Aug. 8 after being reinstated from the IL, Grissom has slashed .269/.407/.417 with five home runs and 24 RBI across 137 minor-league plate appearances. In the majors, he's slashing .148/.207/.160 with three RBI over 87 plate appearances.