After spending five seasons with the Mariners, the 28-year-old Reed spent 2009 with the New York Mets, hitting .242 over 126 games. Over the course of his career, the left-handed hitter has batted .255 with 11 homers and 107 RBIs in 462 games.
Earlier this offseason, Toronto inked outfielder Joey Gathright to a similar Minor League deal. Reed and Gathright will likely compete for a backup outfield role on the Opening Day roster.
Register, 26, split last season between the Rockies and Phillies organizations. He appeared in one game with Philadelphia and finished a combined 2-5 with a 3.92 ERA at Triple-A over 50 relief appearances. Originally selected in the third round of the 2004 First-Year Player Draft by the Rockies, Register was claimed off waivers by the Phillies last May.
Jordan Bastian is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.