Currently, only five perimeter players in the NBA have won the "Best Defensive Player Award": Sidney Moncrief, Alvin Robertson, Michael Jordan, Michael Cooper, Gary Payton, and Ron Artest.
Sidney Moncrief, as a guard, was the first recipient of the "Best Defensive Player Award" and he also won it the following year. —— Can you imagine? This award, which later became almost exclusively won by interior players, was first won by guards twice in a row.
There are many interesting phenomena like this. For example, Bill Russell, who has won the most total championship rings, never won a Finals MVP. Then the NBA named the "Finals MVP Trophy" after him to make up for this regret.
