Ramirez, a soft-tossing right-handed reliever, was designated for assignment by New York on Feb. 28 in order to create room for Chan Ho Park on the 40-man roster.
The 28-year-old appeared in 20 games over two stints with the Yankees in 2009, compiling a 5.73 ERA with no record. He spent the remainder of the season at Triple-A Scranton/Wilkes-Barre, going 1-5 with a 3.19 ERA in 29 games.
Originally a product of the Angels' farm system, Ramirez was plucked by the Yankees from the Independent United League in July 2006 and made his biggest impact in '08, when he was 5-1 with a 3.90 ERA with 63 strikeouts in 55 1/3 innings over 55 appearances.
In 96 appearances with the Yankees from 2007-09, Ramirez was 6-2 with a 5.22 ERA, two saves and 116 strikeouts in 98 1/3 innings.
Bryan Hoch is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.