Already during his junior year of high school Warren had expressed his will to play for Virginia Commonwealth University, and he committed to VCU in 1990, after his McDonald's All-American selection. His freshman season at VCU saw him leading the team in both scoring and rebounding, with respective averages of 15.7 and 8.5, was awarded the Sun Belt Freshman of the Year and was named in the All-Conference Team. His sophomore season was even more successful and was his best scoring season: he averaged 19.0 points per game, starting all of his 29 games, and was the 3rd best scorer of the 1991–92 Metro Conference Tournament. The 1992–93 season saw Warren average 17.6 points and 9.1 rebounds, and VCU reached the Conference finals, where they were defeated by Louisville 90 to 78. Warren's senior season saw a significant improvement in his rebounding average, and he led the Metro Conference with 12.4 rebounds per game. He finished his career as VCU top scorer of all time with 1,858 points and was second in career rebounds with 1,049. In 2005 VCU retired his jersey number, 23.
College statistics
Professional career
Warren became automatically eligible for the 1994 NBA Draft after his senior year, but he was not selected by any of the NBA teams. He was drafted 3rd overall in the 1994 CBA Draft by the Rockford Lightning and played his first season as a pro in the Continental Basketball Association. Warren played all 56 games of the 1994–95 season, was named the CBA Rookie of the Year and was an All-Star selection. He averaged 18.1 points and 7.4 rebounds. After his successful rookie season in the CBA, Warren decided to play overseas and had a brief experience in Sweden, where he played for Malmö. He came back to the United States in 1995 and played 3 more years in the CBA, this time for the Yakima SunKings, where he averaged 16.3 points and 7.8 rebounds in the 1995–96 season and 14.0 points and 9.0 rebounds in the 1997–98 season. He then transferred abroad again, this time first to Huelva in Spain and then to Brazilian team Flamengo; in 1999 he signed for his hometown team, the newly founded Richmond Rhythm of the International Basketball League. He played for London Towers in the 2000–2001 British Basketball League, and he was selected in the All-Star team thanks to his 20.7 points per game. He also appeared in 9 EuroLeague games that season. He won the 2001–02 Finnish league with the Espoon Honka, and then played in England for 3 more seasons before ending his career with Hermine Nantes in the LNB Pro B.
