I've been fortunate enough to have gotten Mike's autograph a number of times during the 2012 season when he arrived at AA Bowie, having come to the organization from the D-Backs in return for the ultimately disappointing Josh Bell in a May 2012 trade. And thanks again to my dad's OMC production, I already have a signed, personalized Orioles card of Mike in my collection, so I will never need to worry about an upgrade.
The Orioles ended the 2013 season with 24 new players having made their black and orange debuts, from Alexi Casilla near Opening Day, to Belfiore near the end of the season. The Birds didn't quite have it in them to make the playoffs this season, but I'm happy they remained in contention through the final week of the year.
Hopefully next week I will have time to do a quick rundown on all the players who made it into a game for the O's this season.