If pressure is a privilege—and surely it is—Billie Jean King has not slowed down since her monumental defeat of Bobby Riggs in the historic, so-called "Battle of the Sexes" 40 years ago. Here's a sampling of the notable tweets (or tweets from notables) that she received on Friday, September 20—or, in Maria Sharapova's case, a day later but meaning no less than the rest.

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[View the story "Tweets of the Week: Billie Jean King's \"Battle of the Sexes\" Win Turns 40" on Storify]

What's your favorite among the tweets? Says here Coco Vandeweghe captured the seriousness of the milestone moment and the playful wit of Billie Jean herself in just one tweet.

Got a thought, a tip, or a point to make? Hit me on Twitter @jonscott9.