What is the most curious and dangerous job in tennis?

Consider the quarter-final match between Halep and Amanda Anisimova of the United States, scheduled for Wednesday. For over six years now, Darren Cahilllongtime ESPN coach and commentator who has worked with Andre Agassi, Andy Murray and Ana Ivanovic, among others. coached Halep.

They broke up in September. Cahill, who is Australian, said the rigors of travel and the Covid-19 quarantines Australia required every time he returned home had become too much. But after Australia withdrew the demands, Anisimova asked Cahill to join her team ahead of the Australian Open in January, and he accepted.

Anisimova’s head coach was her father, who died suddenly of a heart attack at the age of 52 in 2019. Since then, she has been struggling to find a stable coach. But relations with Cahill did not work out, and in March Cahill broke up with Anisimova, saying that he overestimated his ability to cope with obligations to her and his family. Since then, Cahill has signed Yannick Sinner, the aspiring 20-year-old Italian star who fired his longtime coach Riccardo Piatti in February, in a relationship most thought would last for years before breaking up. Sinner lost to Novak Djokovic on Tuesday..

This number of players has changed so many coaches. Yet Paul Annacone, who has coached Pete Sampras, Roger Federer, Sloane Stevens and recently began working with Taylor Fritz, said the most important thing a coach can give a player is “consistency” and what he called “a macro understanding of the environment.” and best practices to get that player to agree with the agreed upon philosophy.”

Annacone said that the relationship between coach and player often breaks down when communication breaks down. He said that indeed “knowing the other person is very important.”

Or maybe sometimes it doesn’t.

Muratoglu and Williams were almost inseparable for years. He was constantly present on the training courts with her and in her boxing. He even admitted to coaching her. during the 2018 US Open final against Osaka, a violation that caused her to be penalized a point and then a game during the match, which she lost in straight sets.