Milwaukee Bucks v San Antonio Spurs

Duncan played in all 50 Spurs games in 1999, his second NBA season. The 22-year-old averaged a double-double (21.7 ppg, 11.4 rpg) and helped lead the Spurs to the first of five championships in his career. (Photos by Chris Covatta/NBAE via Getty Images)

Duncan played in all 50 Spurs games in 1999, his second NBA season. The 22-year-old averaged a double-double (21.7 ppg, 11.4 rpg) and helped lead the Spurs to the first of five championships in his career. (Photos by Chris Covatta/NBAE via Getty Images)