May a player concede a point to his opponent in professional tennis, overruling the umpire's call? - Quora
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VIDEO | Novak “Hawkeye” Djokovic overrules umpire; shows sportsmanship to gift Sascha Zverev “second” first serve
In tennis, how does the chair umpire over-rule the line umpires call (when electronic review is available)? Does he have indications on his system as to where the ball lands every time? -
![WATCH: High drama as umpire overrules a close line call on Barbora Krejcikova's match point » FirstSportz WATCH: High drama as umpire overrules a close line call on Barbora Krejcikova's match point » FirstSportz](https://cdn.firstsportz.com/wp-content/uploads/2021/06/24061052/IMG-20210611-WA0046_copy_1600x900-696x392.jpg)
WATCH: High drama as umpire overrules a close line call on Barbora Krejcikova's match point » FirstSportz
![Reigning ATP Finals champion Daniil Medvedev has just enough answers to squeak past Alexander Zverev Reigning ATP Finals champion Daniil Medvedev has just enough answers to squeak past Alexander Zverev](https://images.tennis.com/image/private/t_16-9_1920/v1637088731/tenniscom-prd/jwgyjpvviuuw4sdvycuv.jpg)
Reigning ATP Finals champion Daniil Medvedev has just enough answers to squeak past Alexander Zverev
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