Callihan is out of the lineup for Sunday's game against the Brewers.
The left-handed hitter will hit the bench for the second time in the series while the Brewers face off against another lefty starter in Robert Gasser. Since blasting two home runs in a June 10 game against the Dodgers, Callihan has left the yard just once in his subsequent 24 contests, and he's slashing an underwhelming .231/.282/.354 during that stretch. He could soon find himself as the odd man out of the lineup against right-handed pitching after the Pirates completed a trade earlier in the weekend for another left-handed bat in Jacob Gonzalez, who may be in store for playing time at first base while Spencer Horwitz (hamstring) remains on the injured list.