Robert Horry is one of only nine players in NBA history with seven championships, winning two straight with the Rockets (1994 and '95), three in a row with the Lakers (2000, '01 and '02) and two more with the Spurs ('05 and '07) during a 16-year career that ended in 2008. Regarded for his clutch shooting, Big Shot Rob has unique insight into what it takes to win a ring. Horry, now 43 and an analyst for Time Warner Cable SportsNet, shares with SI.com the difficulties of winning a title and the challenges of defending it.