NEW YORK (AP) — Daniil Medvedev can offer a unique perspective on U.S. Open spectators: During his run to the final two years ago, he transformed from a "hated villain" who taunted the paying ...

announced Monday that Hawk-Eye Live electronic line-calling will be used for all competition courts at the U.S. Open in 2021 and at seven of the nine US Open Series events preceding it.