Eric O'Flaherty returns from the disabled list, earlier than I thought he was due back, in time for the A's six-game swing through Detroit and Boston. Detroit is extremely right-handed: Of their active hitters, only Anthony Gose and Tyler Collins are full-time lefties (Andrew Romine is a switch-hitter) and neither of those are exactly strike-fear-into-the-hearts-of-managers types, so O'Flaherty will have limited tactical use for the next three days, though at his best, he's almost certainly a better option against all batters, not just lefties, than Angel Castro.

The Red Sox these days are also largely lefty-less, with only David Ortiz batting from that side. He, of course, is absolutely worth targeting -- not that he becomes a bad hitter against lefties, but his career split is about 160 points of OPS. Boston also has Brock Holt and Carlos Peguero from the left side, but I'm going out on a limb to guess that Bob Melvin's not going to burn O'Flaherty on Brock Holt \o/.