FLUSHING MEADOWS, N.Y. — The first night of the rest of Coco Gauff’s tennis career looked a lot like a lot of the old ones. Point-saving sprints, brilliant athleticism, and a three-set win built on grit and competitiveness rather than beautiful tennis. Across more than two-and-half-hours of a nervy, momentum-shifting match against Ajla Tomljanović at

Coco Gauff’s first match since enlisting someone to help with her shaky serving got off to a rocky start at the U.S. Open on Tuesday night. The only numbers that truly counted in the end, of course, were the ones on the Arthur Ashe Stadium scoreboard, and those showed that the No. 3-seeded Gauff held