
Harriet Dart offered to bet the umpire £50,000 she was right about a disputed line call in her ill-tempered defeat to British teammate Katie Boulter at the Nottingham Open.
Dart told the official Kelly Rask that she was “embarrassing yourself” after the British No 2 was convinced a ball landed out during a rally in the second set of a tight tussle and later accused Rask of “threatening” her.