What kind of a player was Nate Thurmond? Here’s a quick look into his competitive psyche. Early in the 1969-70 NBA season, Thurmond’s San Francisco Warriors hosted the Milwaukee Bucks, featuring the larger-than-life rookie Lew Alcindor (Kareem Abdul-Jabbar). Thurmond had yet to face Alcindor. But he noticed the Bucks were scheduled to play the Lakers in…