Emma Raducanu lost to Karolina Muchova after an emotional first set in which a spectator was ejected at the Dubai ...

The US Open tennis tournament will allow 100% spectator capacity throughout its entire two weeks in 2021, a year after spectators were banned from the event because of the coronavirus pandemic.

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.