As you can see from the photo Nate Thurmond was big. And being that big means you are a physical specimen. And that he was.
Thurmond averaged 15 points per game and 15 rebounds per game for his career and had seasons where he averaged over 20 rebounds per game.
Thurmond was a seven time All-Star and and a 5 time All-Defensive team selection. He was big, he could rebound, he could score, he could do it all.