The 5 most unbreakable records in Spurs franchise history

4. Tim Duncan's shot-blocking dominance

Few duos had better on-and-off-court chemistry than David Robinson and Tim Duncan. They won two titles together in 1999 and 2003, and while both of them were exceptional shot blockers, the latter was the ultimate rim protector.

Both Hall of Famers spent their entire career with the Silver and Black, but Duncan had the rare longevity that injuries kept Robinson from experiencing. The Big Fundamental finished in fifth place on the all-time NBA leaderboard with 3,020 blocks, and he beat out his Twin Tower counterpart for the top spot in Spurs history.