sentences:  Through the efforts of his Cleveland coach, Martin Rennie, and general manager Aaron Treadway, they arranged for him to play in a May reserve game for the Columbus Crew against the Chicago Fire in which the Columbus Crew team won 1–0.As a result of this tryout, the Crew asked offered Peterson a developmental contract in July 2007.His first game with the Crew was against the Colorado Rapids on July 4, 2007.