Slivinski, a native of
St. Louis, Missouri, grew up immersed in that city's soccer culture. Beginning playing when he was five, Slivinski became a member of the Scott Gallagher soccer club. Slivinski attended Francis Howell North High School where he was the 1992–1993 Gatorade Player of the Year for the state of Missouri. Slivinski attended the
University of Virginia where he was a member of the men's soccer team from 1993 to 1996. A forward with blazing speed and electrifying creativity, Slivinski's college career was shattered when he suffered a torn ACL. Though he recovered from the injury after a year's hiatus, he was never the same. In 1994, Slivinski was unable to play for the Cavaliers as he was academically ineligible. He received an academic suspension for the 1994 season and was not in school that semester. ==Professional career==