Wow. Rotoworld just reported that the Os are calling up Jeff Fiorentino to take Matos's roster spot. Sal Fasano is also getting called up (though I'm not sure how that works -- with Matos and Sammy going down, I though we only had room for two, Reed and Fiorentino).
So no Young for now, it looks like.
This seems awfully premature for Fiorentino. I love him as a prospect, but the jump from Frederick to Baltimore is a big one -- early exposure certainly didn't benefit Bigbie. Perhaps they're just going to let him get a taste of the big time by sitting on the bench and playing a little defense. But if that's the case, that means they haven't brought up anyone who will actually contribute on offense, since Reed and Fasano certainly don't count.