The umpires are according to The Times considering to boycott future Serena Williams matches.
"It's been polarized and in some ways politicized", USA captain Jim Courier told The Associated Press on Thursday.
Williams called Ramos a "thief' and a "liar" for charging her with a point penalty, and also slammed her racket to the court, breaking it during the match. Overall I felt really happy and know I accomplished a lot". "But he enforced rules that have been enforced on me over the years". "That's just part of the sport".
On Thursday, a photo circulated of him in conversation with Katrina Adams, president of the US Tennis Association, who had been quick to support Serena Williams's claims of sexist discrimination.
"Thank you, Serena Williams, for calling out this double standard".
In the second set, she slammed her racket into the ground when broken back for 3-2, after which she was given a point penalty.
"I guess I'd like to hang out with my sister - I haven't seen her since Wimbledon", said Osaka, who has become an unlikely hero in a country still reeling after a summer of deadly typhoons and earthquakes.
"He's always been a fair, level-headed guy and made a decision in the heat of the moment".
White tennis players berating umpires, smashing rackets, threatening officials, and even hitting umpires with balls can easily be found online.
Tennis legend Martina Navratilova also criticized Williams this week, writing in The New York Times, "We can not measure ourselves by what we think we should also be able to get away with".
Osaka said she was taught as a youngster to ignore the other side of the court.
Williams was fined $17,000 for her violations, which was taken out of her runner-up prize total of $1.85 million.
"I know the way that I was brought up, people tell me I act kind of Japanese so I guess there is that". It's time for me to leave this planet.
Against Croatia, Johnson will face Borna Coric in Friday's opening singles match, followed by Cilic versus Davis Cup debutant Frances Tiafoe.