At Flushing Meadows, where greatness is measured in the weight of repetition, Aryna Sabalenka moved one match closer to joining the rarest company in women's tennis. Her 7-5, 6-2 dismantling of Jessica Pegula on Thursday was less a contest than a demonstration — a reminder that dominance, when it arrives fully formed, leaves little room for argument. Should she win Saturday's final, she will become the first woman since Serena Williams to claim three consecutive US Open titles, a feat that places her not merely at the top of a ranking but inside a longer story about what sustained excellence l