A.J. Griffin has been shut down with shoulder discomfort during his rehab, which seems like a really bad thing. You can spin it as a good thing if you want, and say "well at least it's not the elbow he's rehabbing" and, no, sure, it's not, but (a) shoulders are a much more difficult thing and (b) if we're looking at a cascade situation then who cares that it's not his elbow, because if his shoulder is busted, then he can't pitch just as much as if it were his elbow.

The "upside" here is that realistically the A's could not have been counting on Griffin for more than half a season of fourth-starter work in 2015 anyway. Maybe he's got more upside than that, but probably not. And that, coming back from injury and without stunning stuff in the first place, was probably his 75th percentile projection. Median was maybe 12 starts with a 95 ERA+? Something. I don't know. Whatever it is, they're not in the same place that, say, the Rangers will be next year with Yu Darvish, a legitimate ace coming back from surgery.

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In happier news, Angel Castro has been added to the 40-man roster and called up to the majors. He'll replace R.J. Alvarez on the 25-man and Alex Hassan (DFA'd) on the 40. Castro was drafted out of an Oklahoma junior college back in 2006, he's been released a couple of times, he's pitched in Mexico and Japan, he's pitched for six different organizations in the U.S., he's 32, and now, finally, he'll pitch in the major leagues. He's never had a comment in a Baseball Prospectus annual. He was drafted three spots behind Mike Minor (who didn't sign and later went in the first round) and 12 spots ahead of Daniel Murphy (who did sign, but who reached the big leagues for good just over two years later and made the All-Star team last year).

Baseball, what I'm trying to tell you is, the thing is, baseball is weird.