University of Cincinnati-bound Springfield 5-foot-10 senior hitter Gretchen Sigman is a one-man wrecking crew. Sigman, who committed to Cincinnati a year ago and plans to sign in November, had 19 kills, 14 digs, three blocks and two aces in leading the Blue Devils to a 25-16, 25-17, 25-22 Northern Lakes League Cardinal Division victory over visiting Bowling Green Thursday.