Demetrius Freeman for The New York Times
[Check back here for periodic updates from the match between Naomi Osaka and Coco Gauff.]
Coco Gauff and Naomi Osaka took center stage in Arthur Ashe Stadium a little after 7 p.m. Saturday in a matchup that tennis fans expect to see many times during the next several years.
There was atmosphere of anticipation and buzz, and it was clear that the audience favored the American Gauff, who is only 15 years old. She was playing her first match against a No. 1 ranked player and her first match against Osaka, who at 21, is considered the veteran of the pair.