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11/21/2013 7:43 P.M. ET

Royals officially add Vargas to 40-man roster; designate Kottaras for assignment

KANSAS CITY, MO (November 21, 2013) -- The Kansas City Royals announced today that left-handed pitcher Jason Vargas, who signed a four-year contract earlier this afternoon, has been officially added to the 40-man roster. To clear a spot on the Major League 40-man roster, the Royals have designated catcher George Kottaras for assignment.

Kottaras, 30, was claimed by Kansas City off waivers from the Oakland Athletics on January 25, 2013.

This story was not subject to the approval of Major League Baseball or its clubs.