Dennis Keith Rodman (born May 13, 1961) played basketball in the National Basketball Association (NBA) from 1986 to 2000. He won two championships with the Detroit Pistons and three more with the Chicago Bulls. Even though he was only 6'7" tall, many people think he was the best rebounder in NBA history. He led the NBA in rebounding for a record seven straight seasons. Only Wilt Chamberlain led the NBA in rebounding for more total seasons in a career. Rodman has the highest rebound rate since the statistic began in 1970-71. Although Rodman began his career as a bench player, he holds the highest rebounds per game average since offensive and defensive rebounds began in 1973-74. When he became a full-time starter, Rodman often got more rebounds than the other team's starting players got combined. He could predict where missed shots would go and knew how to tip the ball to himself for a rebound. Rodman watched film of player's shots to become a better rebounder. Rodman is also known as one of the greatest defensive players of all time, and not just for his defensive rebounds, but his hustle defense. During his time with the Detroit Pistons, Rodman was considered by many to be the best defensive basketball player in the world (Hakeem Olajuwon was the other main contender for the title), as highlighted by his back-to-back NBA Defensive Player of the Year Awards in 1990 and 1991.