The U.S. Open will be the first Grand Slam to use a Video Review (VR) system to assist chair umpires when calls are challenged at this year's tournament, with the system already generating positive feedback at various ATP events.
The system will allow players to challenge a range of decisions, such as those relating to double bounces and foul shots, and will use various camera angles to get the best view of an incident, according to a document on the U.S. Open media site.
"The VR official and VR operator will then send the video to a screen on the chair umpire's chair as well as stadium screens when available," the document said.