OAKLAND -- Planning for three off-days in an eight-day span beginning Thursday, the A's optioned right-hander Frankie Montas to Triple-A Nashville on Monday, subtracting from their rotation in favor of an extra reliever.
Right-hander Ryan Dull's addition from Triple-A gives the A's nine options in their bullpen, which could be altered yet again should the postseason-hopeful A's swing a deal for another reliever before Tuesday's 1 p.m. PT non-waiver Trade Deadline.
Already, they've added veteran righty Jeurys Familia, and sources indicated to MLB.