Tim Duncan spent nearly two decades as the quiet storm in the middle of the San Antonio Spurs franchise, putting the team on his broad shoulders and carrying it to heights unseen in modern American sports. With Duncan as the focal point, the Spurs won five championships, made the playoffs in all 19 of his seasons and cemented themselves as one of the most successful franchises in all of sports. The 40-year-old Duncan announced his retirement on Monday, marking the end of an era for the Spurs and the NBA. More...