The Blue Jays optioned Pinango to Triple-A Buffalo on Tuesday.
Pinango has gone just 4-for-23 (.174) in eight games since his return to the big leagues, and he'll now end up as the roster casualty necessary to clear space for Chad Dallas. The 24-year-old Pinango still owns a .726 OPS with Toronto this season and figures to return to the majors later in the year.