Tim Duncan offered a rare acknowledgement: He's thinking about the end of his career. No, the San Antonio star didn't announce retirement plans during an off day at the NBA Finals on Wednesday. But a player who has almost always declined the chance to discuss his own legacy after 17 seasons in the NBA - all with the Spurs - Duncan provided a glimpse of what's going through his mind as his career is clearly much closer to the end than the beginning. ''I think in the last couple years I've really kind of taken a step back and stopped and enjoyed what the journey means,'' Duncan said on the eve of Game 4 of these NBA Finals against the Miami Heat, a series that the Spurs lead 2-1. More...