Antonacci is not in the White Sox's starting lineup against the Guardians on Saturday.
Antonacci has faced his fair share of southpaws this season, but he will be on the bench to open Saturday's contest while Junior Perez starts in left field and bats fifth against Guardians left-hander Parker Messick. Since June 1, Antonacci has a .316 batting average with three steals, four home runs, 11 RBI and a 10:16 BB:K across 114 plate appearances.