A new report alleges that Rachel Uchitel, the woman who initially denied she had an affair with Tiger Woods, now admits to the romance.

According to RadarOnline.com, Uchitel now confesses to being involved with the golfing legend. Meanwhile, she told the New York Post, "I have not had an affair with Tiger Woods…I have never spoken on the phone with Tiger Woods, or texted him, ever."

Denying the rumor, she said to the newspaper, "This is ridiculous. Not a word of it is true. I told the Enquirer and Star that it wasn't true. I told them not only did I have information to disprove the story, but I offered to take a lie-detector test."

ET has confirmed that the alleged mistress will appear at a press conference on Thursday with her high-profile attorney Gloria Allred -- but if you think you'll hear from Uchitel at the conference, think again. Only Allred will speak, delivering a statement about Uchitel's connection with Woods.

See Uchitel get mobbed by paps while arriving at Allred's L.A. law office earlier on Wednesday. Then, keep checking back here for the latest!