Here is a clip of some of the 3rd set of the 1970 U.S Open final between Margaret Court and Rosie Casals, where Court completed her historic Calender Slam, at the time one of only 2 women (later joined by Steffi Graf) to compete this feat. Interestingly there is commentary by Billie Jean King, the chief rival of Court and close friend of Casals, who had to miss that years U.S Open with injury. I am impressed with her impartiality, as I would have expected her to biased towards Casals. http://www.youtube.com/watch?v=ith3DO4TcD8 Check out the backhand passing shot going backwards in the corner from Court at 4:24! Wow.