Toussaint cleared waivers Thursday and was sent outright to Triple-A Charlotte, Vinnie Duber of AllCHGO.com reports.
Toussaint was dropped from Chicago's 40-man roster Tuesday after accumulating a 7.43 ERA and 2.30 WHIP across 23 innings with the big-league squad. He'll remain with the organization as minor-league bullpen depth, though his chances of making it back to the majors before the end of the year are slim.