He could provide some late - season rotation insurance in case of injury .
Aceves , a 31 - year - old , was assigned to Triple - A Scranton and is expected to be a starter for the RailRiders .
Aceves could provide some late - season rotation insurance in case of injury .
Aceves , a 31 - year - old , was assigned to Triple - A Scranton and is expected to be a starter for the RailRiders .