Toronto signed Franklin Morales to a one-year, $2 million deal, the club announced Saturday night.
Morales, 30, signed a minor league deal with the Brewers but was released last week. The Brewers chose to have Chris Capuano serve as their left-handed option out of the bullpen.
Aaron Loup is set to open the season on the disabled list, and as a result, the Blue Jays appeared to be in pursuit of left-handed depth.
Brett Cecil is the only other left-handed relief option for Toronto to turn to.
Earlier this off-season, the Blue Jays signed Randy Choate to a minor league deal but subsequently released him.
Wade LeBlanc and Pat Venditte are among the other minor league possibilities for the Blue Jays to consider.
Morales pitched to a 3.18 ERA and 3.52 FIP over 62.1 innings last season with the Royals. He appears to be best suited for a LOGGY role and could thrive in that role in Toronto.