U.S. Open implements a new 25-second shot clock system for serving - Newsday
An early look at the pros and cons of tennis' new serve clock
Watch Coco Gauff Clock 128 MPH Serve at US Open – NBC New York
Facts You Should Know About Slice and Kick Serves | WebTennis24
US Open to Use Serve, Warm-Up Clocks | Long Island Tennis Magazine
Craig O'Shannessy 🇺🇦 Twitterren: "Serve clock is 25 sec. #Kyrgios #USOpen https://t.co/pZatlHiuIN" / Twitter
One of His Issues' - Billie Jean King Points Out Rafael Nadal's Issues With Serve Clock - EssentiallySports
Topslice serve | Talk Tennis
Serena: Not A Fan Of Serve Clock
SMT (SportsMEDIA Technology)
Serve Mechanics - Ball Toss (Part One) - Tactical Tennis
Serve (tennis) - Wikipedia
Does Tennis Need a Shot Clock? | FiveThirtyEight
US Open becomes the first Major that would use a serve clock in main draw
Why the tennis “serve clock” may be a waste of time - Kovalchik - 2018 - Significance - Wiley Online Library
Developing The 2nd Serve In Tennis - Tenicity
Shot-clock, doubles changes for ATP in 2019 – Open Court
USTA discusses serve-clocks and eliminating service lets to improve tennis | Tennis | The Guardian
US OPEN '18: On the clock! 25-second countdown's Slam debut | AP News
Official Site of the 2023 US Open Tennis Championships - A USTA Event
Tennis Players Get Ready to Be Put on the Clock (Visibly) - The New York Times
U.S. Open will use a 25-second serve clock to speed up pace of play - The Washington Post
