Bierbrodt, a former first-round pick, is something of a blast from the past, at least on the Major League scene. He spent all of 2010 in the Rockies' organization, according to Rosenthal, and last appeared in the bigs with the Rangers in 2004.
For his career, Bierbrodt has a 6.66 ERA in 144 2/3 innings, with 7.0 K/9 and 5.3 BB/9.
There is a connection here, as Rosenthal notes, as O's skipper Buck Showalter is familiar with Bierbrodt from his days as Arizona's manager. The Diamondbacks drafted Bierbrodt in 1996.