Complex sentence: His sophomore year, he averaged over 20 points and 12 rebounds a game.For his junior year, he transferred to Fork Union Military Academy in Virginia, where he averaged 17 points and 12 rebounds for a 29-0 team.
Split into simpler sentences: His sophomore year, he averaged over 20 points and 12 rebounds a game. Prior to his junior year, he transferred to Fork Union Military Academy in Virginia, where he averaged 17 points and 12 rebounds for a 29-0 team.