Conversation so far:
Who was Rod Laver's biggest rival?
Rod Laver had a friendly rivalry with Ken Rosewall between 1963, when he started out as a pro, and 1976, when both were semi-retired from the main tour.
What other rivals besides Ken Rosewall did Rod Laver have?
Rod Laver had another rivalry with his fellow Queenslander Roy Emerson.

Question: Are there any other interesting aspects about this article?
Self-contained rewrite: Are there any other interesting aspects about Rod Laver's rivalries besides his rivalries with Roy Emerson and Ken Rosewall?