Gregerson will likely be left in the eighth inning role, despite Sean Doolittle being placed on the DL with an oblique injury, the San Francisco Chronicle's Susan Slusser reports. Manager Bob Melvin said he wants to keep people with defined roles in those roles, and the general consensus among the A's beat writers was that Eric O'Flaherty will be the fill-in closer, which lessens the appeal of Gregerson as a speculative add for saves.