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"Pena is a solid addition to our roster," Orioles general Manager Dan Duquette said. "He gives us catching depth and should help our club in 2016."
To make room for Pena on the 40-man roster, the Orioles designated infielder Paul Janish for assignment.
William Boor is a reporter for MLB.com. Follow him on Twitter at @wboor. This story was not subject to the approval of Major League Baseball or its clubs.