The White Sox added organizational catching depth Monday, signing backstop Roberto Pena to a Minor League deal, according to SB Nation.
Pena, 24, hit .235/.273/.376 with eight home runs and 25 RBIs in 74 games between Houston's Double- and Triple-A affiliates last season.
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Pena was the Astros' seventh-round pick in the 2010 Draft and is a .237/.283/.342 career hitter in seven Minor League seasons in Houston's system.