Watch: Tennis Umpire calls 'Game Federer' in Djokovic's Match
A working life: The tennis umpire | Work & careers | The Guardian
Wimbledon umpires banned from calling female players 'Miss' or 'Mrs' | The Sun
Tennis Stars Want Hawk-Eye As French Open Umps Judge by Clay Marks
Viktor Troicki Loses It, Screams at Umpire at Wimbledon
Science explains why 80% of umpire tennis calls are actually in | Blake Snow
Kader Nouni: The Umpire Known as the 'Barry White of Tennis' - The New York Times
Italian Open: Umpire calls for protection from tennis dad
Official (tennis) - Wikipedia
You can't be the player's friend': inside the secret world of tennis umpires | Tennis | The Guardian
Worst line calls and umpire decisions in Tennis - YouTube
Serena Williams is calling out sexism in tennis. Here's why. | CNN
History-making US Open umpires hope to inspire next generation of women officials - Official Site of the 2022 US Open Tennis Championships - A USTA Event