Hearn will likely be available as the primary pitcher Saturday in Oakland since Matt Bush will serve as the opener.
Hearn was initially listed as the probable starter for Saturday's matchup, but it appears as though his appearance will come as a bulk reliever instead. The southpaw returned to the major-league mound July 15 and allowed four runs (two earned) on five hits and two walks while striking out seven in four innings against the Mariners.