The move clears a spot on the Phillies' roster for recently signed right-handed reliever Chad Durbin. Philadelphia's agreement with Durbin is now official.
Ramirez spent the 2012 season with the Phillies' Double- and Triple-A affiliates. He appeared in a combined 45 games, posting an ERA of 4.01 with 7.0 strikeouts and 4.1 walks.
2012 marked Ramirez's first season as a primary reliever in the Phillies' organization. Prior to last year, the 24-year-old has been used almost exclusively as a starting pitcher. From his professional debut with the Mariners in 2006 through the 2011 season, Ramirez only pitched out of the bullpen five times.
Over seven seasons at the minor league level, Ramirez owns a career ERA of 4.31 with 7.2 strikeouts and 3.5 walks per nine innings.