Barbora Strycova was not a fan of Serena Williams at the 2018 U.S. Open final.
Williams was involved in multiple confrontations with chair umpire Carlos Ramos in last Saturday's match, which she lost to Naomi Osaka in straight sets, 6-2, 6-4. The 23-time Grand Slam champion made it clear she believed Ramos had been sexist.
"This is a bulls--t, for umpires being women or men doesn't matter. In comparison, I never saw [Rafael] Nadal shouting like that with an umpire.
"Ramos is tough, one of the best umpires in the world. He did what he had to do in that match, because she overstepped the limit.
"Did she have to behave differently only because she was Serena Williams? I find it interesting that she did it only when she was losing."
Williams was called for three violations during the final: for allegedly receiving coaching from the stands, for smashing her racket and for calling Ramos a "thief," which cost her a game.
Williams noted to a referee that men have gotten away with more without receiving penalties and later addressed the topic of sexism during her post-match press conference:
The Women's Tennis Association issued a statement in support of Serena.
"The WTA believes that there should be no difference in the standards of tolerance provided to the emotions expressed by men vs. women and is committed to working with the sport to ensure that all players are treated the same. We do not believe that this was done last night," chief executive Steve Simon said.
Strycova, the 25th-ranked player in the world, said she was surprised by the WTA's support of Serena.