Despite being the centerpiece of the Milwaukee Bucks offense in the 1980s averaging 20+ points in four consecutive season, Sidney Moncrief was also a great defender. He was the winner of the very first Defensive Player of the Year award in 1983 and then again in 1984. So far, he is one of only four guards (with Gary Payton, Alvin Robertson and Micheal Jordan) to win it and the only guard to win it more than once.
The Bucks standout would also make it onto four All-NBA Defensive First Teams as well as an appearance on the All-NBA Defensive Second Team, one All-NBA First Team and five All-NBA Second Teams.