(MyFoxBoston.com) -- Daily Fantasy Sports players are fighting back at a Boston-based company after allegations about insider information.
Thursday, a Kentucky man who claimed he paid $100 to use Boston-based Draft Kings, a daily fantasy sports website, sued the company, along with its competitor, FanDuel.
In the lawsuit, the man alleges DraftKings employees' used inside information and data to place bets, therefore creating an unfair advantage against consumers.
"I think the lawsuit is certainly threatening to Daily Fantasy Sports companies because it lays out what is a sensible argument," sports law expert Michael McCann told FOX25.
McCann said the outcry against DFS websites began a few weeks ago, when leaked documents showed a DraftKings employee placed a $25 bet on FanDuel and won $350,000.
"The thinking is that he was advantaged in an unfair way, because of what he knew, and that in turn makes it more difficult for people without that knowledge to win," McCann said.
Users of the sites said they were discouraged by the allegations, and many told FOX25 they were considering ending their relationship with the websites.
"They’re not gonna get any more money out of my pocket," said Jon Bisbano.
DraftKings is also under review by the Massachusetts Attorney General's office, according to state officials.