Having actually learned how to serve decently in tennis, thanks to Billie Jean King [when I was stationed in San Angelo, TX for military training], I also recall what a complete load of hype this so-called event was, simply a feeble attempt to make some bucks by that character, Riggs.
It wasn't paid much attention then, doubt if it will now, and had nothing whatsoever to do with any so-called battle of the sexes.
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Battle of the Sexes