Urena was optioned to minor league camp Friday, Mike Wilner of Sportsnet.ca reports.
He was added to the 40-man roster in the offseason but that was for Rule 5 protection -- Urena has logged just 132 plate appearances above the High-A level. A top-five prospect in the Toronto farm system, he recorded eight hits in 28 plate appearances during his time in the Grapefruit League, although seven of the eight hits were singles. A full season at the upper levels of the minor leagues seems likely for the 21-year-old.