Serena Williams鈥 loss to Naomi Osaka in the finals of the U.S. continues to garner controversy, days after the tournament鈥檚 end.

The incident, which echoed incidents involving Williams at both the 2009 and the 2011 U.S. Opens, saw the star lash out against officials for what she thought was unfair treatment on the court.

The dominant Osaka won the match after Williams drew a third violation for insulting chair umpire Carlos Ramos during a lengthy argument that included her calling him a 鈥渢hief.鈥

Williams argued against the ruling, saying that Ramos鈥 decision, which awarded a game to her opponent, was sexist.

"To lose a game for saying that is not fair," Williams said. "There's a lot of men out here that have said a lot of things and because they are men, that doesn't happen."

She wasn鈥檛 the only one with that opinion, with several tennis pros taking to Twitter to speak out against the ruling.

鈥淚f it was men鈥檚 match, this wouldn鈥檛 happen like this,鈥 鈥淚t just wouldn鈥檛.鈥

Tennis legend Billie Jean King said that the call was a sign of a greater double standard that exists in tennis.

鈥淲hen a woman is emotional, she鈥檚 鈥渉ysterical鈥 and she鈥檚 penalized for it. When a man does the same, he鈥檚 鈥渙utspoken鈥 & and there are no repercussions.鈥

She thanked Williams for calling out the double standard, and said more women need to speak out before changes will be made.

Other pros took issue with the call itself, saying that Ramos overstepped his bounds in giving Williams the three warnings that cost her the match.

鈥淲orst refereeing I鈥檝e ever seen,鈥 wrote retired Grand Slam champion and long-time friend of Williams,

Thirty minutes later, he clarified, saying that the tweet had been an

鈥淗e鈥檚 within his power to make that call,鈥 Roddick wrote. 鈥淚鈥檝e seen an umpire borderline coach a player up, and another dock a game for being called a thief in same tourney. There needs to be some continuity in the future.鈥

鈥淭his is crazy!鈥 鈥淭he coaching violation was questionable.鈥

鈥淚 see a ton of coaching from the box and that was marginal. The racket break was legit penalty,鈥 鈥渢hen to give another warning for calling the umpire a thief. Come on!鈥

In a now deleted tweet, Jessie Pegula said that the game had the 鈥渨orst refereeing鈥 she鈥檇 ever seen.

鈥淐oaching warning was nothing, then the game penalty,鈥 Pegula wrote. 鈥淲hat a joke.鈥

Notable tennis coach Michael Joyce disagreed with Pegula, his former student, saying that Williams in his opinion.

鈥淲ell there鈥檚 never consistency,鈥 . 鈥淭he coaching violation wasn鈥檛 a big deal and she made it personal. Smashing the racket automatic. At that point she should of tapered down.鈥

鈥淐oaching is called often. Especially when it鈥檚 that blatant,鈥 Joyce wrote. 鈥淭he racket smash is automatic. And whenever you call the ref something personal like a thief, there鈥檚 a pretty good chance for a code.鈥

He also at Williams鈥 claim to Ramos that she was not a cheater because she had a daughter.

鈥淭he coaching violation can come at anytime and most players just move on and not talk about having a baby,鈥 he wrote.

Voices like Joyce seem few and far on Twitter, with few players standing up for the calls made Ramos.

Tennis writer Ben Rothenberg was saying that Ramos鈥 rulings were 鈥渁ll fair鈥

鈥淢ouratoglou admitted to ESPN that he coached. Thus, the warning was correct by Ramos,"Rothenberg wrote. 鈥淭hen, racket abuse warning was indisputable. Williams felt entitled to having coaching warning retracted, which never happens.鈥

鈥淪o she ranted abusively, and got a third warning.鈥

The Times tennis correspondent Stuart Fraser agreed with Rothernberg, saying in a response that the umpire was being by his colleagues.

鈥淐arlos Ramos one of the few umpires not afraid to call a rules violation against the top players when it is due,鈥 he wrote.

鈥淚t is his colleagues who are letting him down with their inaction, which then leads to situations like this in which players feel they are receiving unfair treatment.鈥

No matter what side of the argument they fell on, players were quick to give their support to Osaka, who鈥檚 first career slam win was overshadowed by the controversy.

The 20-year-old, who made it to the tournament鈥檚 finals only dropping one set, was tearful during the award ceremony, hiding her face and apologizing for her victory as fans in the crowd booed and jeered.

鈥淒espite all the drama surrounding the match, @Naomi_Osaka_ is a Grand Slam Champion and deserved the win!鈥

鈥淚 hope all of this doesn鈥檛 overshadow a remarkable two weeks for her and her team!鈥

鈥淐ongrats @Naomi_Osaka_ on the first of many!鈥 Denis Shapovalov 鈥淲ell deserved.鈥