An online petition supporting Serena Williams and decrying sexism in the wake of her controversial match at the women’s US Open final was just shy of its goal of 19,000 supporters late Sunday night, according to the site on which it is posted.

A second online petition alleging Williams was a victim of racism and sexism during her 6-2, 6-4 loss in the finals has garnered support on Facebook.

The first petition, set up on Care2’s website, calls for revoking $17,000 in fines Williams was assessed for three code violations during the match on Sept. 8. Williams accused the chair umpire, Carlos Ramos, of sexism after Ramos issued her three code violations, which resulted in the loss of a point and then a full game.

“Enough is enough,’’ the petition reads. “Sign my petition to fight back against sexism in tennis — tell the US Open to apologize to Serena Williams and drop her unjust $17,000 fine!’’

The creator of the petition is listed as Rebecca G. and the recipient is Katrina Adams, US Open chairperson and CEO and president of the United States Tennis Association (USTA).

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The second petition, set up on colorofchange.org, asserts Williams was a victim of sexism and racism. Although the number of people who have registered is unclear, the petition by Sunday night had garnered 7,400 “likes’’ on the Color of Change Facebook page.