Ramirez's contract was selected by the Angels on Tuesday.
Ramirez was sent to the Reds in the Raisel Iglesias trade over the winter but was later released and returned to the Angels on a minor-league deal. The 31-year-old could be a useful member of the team's bullpen, as he owns a 3.76 ERA and 1.16 WHIP over the last two seasons.