MELBOURNE, Australia (AP) — The serves were big. So big. Other shots, too. The points were over quickly. So quickly: Seven of the first 13 were aces. And so it was immediately apparent in the Australian Open women’s final between Aryna Sabalenka and Elena Rybakina that the one who could manage to keep her serve in line, get a read on returns and remain steady at the tightest moments would emerge victorious.