There's been a lacuna at the top of the women's game for a while, but can she fill it? Today, she looked better than Williams in every aspect other than the serve. And her serve was decent. Not that much worse than Williams at the same age, but Williams's serve improved a lot over time. Osaka had hard penetrating groundstrokes, good angles, solid movement, a nice return, and a cool head. Will this be the first of many for her?