"The umpiring fraternity is thoroughly disturbed at being abandoned" by officials with the Women's Tennis Association who questioned Ramos' rulings in such a high-profile contest, Ings said.
Much of the criticism of Williams has centred on how her actions had spoiled a precious moment for Osaka, who was even moved to apologise for beating the home favourite to a NY crowd angrily booing Ramos.
In what turned out to the be the not-so-friendly confines of Arthur Ashe Stadium, Serena Williams might have thought she was battling Naomi Osaka for the U.S. Open women's trophy, but she soon realized her other opponent was chair umpire Carlos Ramos.
Strycova also claims that Williams, along with sister Venus, always gets on-court coaching. "She's passionate. She was speaking out and I think for Ramos, he was a little defensive at that point, and was fed up as opposed to saying, 'Okay, let's get back to business, '" Adams said.
A few games later, Williams received another warning, this time for smashing her racket, and that second violation automatically cost her a point, leading to more arguing.
At the press conference after the match, Williams said that the umpire's sanctions were an act of sexism, according to CNN. For me to say 'thief, ' and for him to take a game, it made me feel like it was a sexist remark. In comparison, I never saw Nadal shouting like that with an umpire.
Tennis great Billy Jean King wrote on Twitter: "When a woman is emotional, she's "hysterical" and she's penalized for it".
The Women's Tennis Association (WTA) and United States Tennis Association (USTA) have backed those claims following Williams' straight sets defeat to Osaka.
The umpires feel that Ramos was "thrown to the wolves for simply doing his job and was not willing to be abused for it".
According to the source, umpires are reportedly discussing the option of refusing match assignments that involve Williams until she apologises to Ramos for calling him a "liar" and "thief".
On Monday, The International Tennis Federation defended Ramos in a statement.
Another person identified as an "senior figure" told the Guardian that umpires felt Ramos was "hung out to dry" after the incident and that "no one is standing up for officials" amid reports that the incident is fueling talks of a boycott.