Dak Prescott claims a woman is threatening to go public with false sexual assault allegations against him if he doesn't pay her $100 million ... and now, he's suing to try to put a stop to it all. The Dallas Cowboys superstar filed the lawsuit in Collin County, Texas on Monday ... alleging the woman, Victoria Shores, spelled out her extortion plot in a letter to him and his representatives back on Feb. 13. Prescott claims Shores alleged in her letter that he assaulted her in Feb. 2017 -- just after his rookie season with the Cowboys had concluded. He said in the suit that if and only if he paid her $100 mil, she'd ... (full story)