Ginn is slated to start Tuesday's game against the Mariners in Oakland.
Ginn will receive a second turn through the rotation after he surrendered four runs on four hits and one walk while striking out four across five innings in his first MLB start this past Thursday in Cincinnati. The Athletics will likely give the 25-year-old right-hander some runway in a starting role during September as he looks to make a case for a permanent spot in the big-league rotation in 2025.