It’s almost 11 p.m. As Billie Jean King strikes a pose in the bowels of the Rod Laver Arena for a photograph capturing her reunion with some of the “Original 9”, the group of players who sparked the revolution in professional women’s tennis in the early 1990s 1970, resulting in the creation of the WTA, Anton Dubrov and Jason Stacy, coach and physical trainer of Aryna Sabalenka, emerge from a hallway with eyes full of emotions.