that’s another story. I just know that player was devasted when they lost clearly blaming himself.
https://www.theguardian.com/sport/2016/jan/18/novak-djokovic-match-fixing-tennis-australian-open
https://www.abc.net.au/news/2019-01-11/tennis-match-fixing-28-players-arrested/10707402
also there is a story about how two women tennis players were getting signals from the coaches to try to fix the match. I think each one was suppose to win a set during the australian open