actually the greatest personal rivalry all time is also in tennis, but it's not federer vs nadal, it's
chris evert vs martina navratilova!
not only like i said the greatest invidual rivalry, but in reality the greatest rivaly in all of sports! of course it doesn't get the "attention" because 1) it's tennis and 2)it's women.
however,just based on the facts, it's easily the greatest rivalry of all time in sports!
they played 80 times! 80 times! and usually in finals for over 16 years they were usually the top 2 in the world! think about that 16 years and 80 matches all over the world! no 2 players in any sport will every play that many times against each other, and also be the top 2 in the sport for that many years!
fed vs nadal, so far is 22 times, thats' it.
ali vs frazier? 3 times
how many times did the celtics play the lakers in the championships? just a handful.