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04/05/12 3:04 PM ET

Rays claim lefty reliever Gaub off waivers

ST. PETERSBURG, Fla. -- The Rays have claimed left-hander John Gaub off waivers from the Cubs.

Gaub, 26, went 0-0 with a 6.75 ERA in four appearances for the Cubs in 2011.

In five Minor League seasons, Gaub is 12-12 with a 3.60 ERA in 171 appearances.

He has been added to the Rays' 40-man roster, but he will not be part of the 25-man Opening Day roster. The move brought the 40-man roster to its full capacity.

Bill Chastain is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.