2. Bill Russell
Bill Russell is considered one of the best NBA players on his defensive game alone. Sure, he was an instrumental part of the Boston Celtics’ domination of 11 NBA Finals in 13 years, but he never averaged more than 19 points in any game, any season. So why is he one of the best? It’s simple – he was the best defender around in the 1950s and ‘60s. Russell was a nightmare for teams that were trying to oppose the Celtics. We know his defensive win shares total 133.64 – the highest in NBA history.