(EN) Billie Jean King, Post Twitter, su twitter.com, 9 settembre 2018. URL consultato il 20 novembre 2023.
«When a woman is emotional, she's "hysterical" and she's penalized for it. When a man does the same, he's "outspoken" and there are no repercussions. Thank you, @serenawilliams, for calling out this double standard. More voices are needed to do the same.»