Are you an idiot?' Culture of umpire abuse in tennis | Tennis | Al Jazeera
Kader Nouni: The Umpire Known as the 'Barry White of Tennis' - The New York Times
You can't be the player's friend': inside the secret world of tennis umpires | Tennis | The Guardian
Roland Garros and electronic line-calling still don't see eye to eye - ESPN
Roles of Officials - Tennis Canada
Pe | PDF | Referee | Hand
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What Is An Umpire In Tennis?
8,313 Tennis Referee Photos and Premium High Res Pictures - Getty Images
Serena Williams' U.S. Open penalties spark debate over sexism in sports
Tennis fans go wild for Serbian umpire who tipped Nick Kyrgios over the edge | Daily Mail Online
SOLVED: Since an instant replay system for tennis was introduced major toumament Mem challenged 1390 referee calls with the esult that 429 of the calls were overturned Women challenged 750 referee calls,
Why Novak Djokovic Was Disqualified From the U.S. Open - The New York Times