Yahoo Inc. has filed suit in Minnesota alleging that the NFL Players Association has no right to charge for player pictures, biographies and statistics used to drive its fantasy football games.

According to the Minneapolis Star Tribune, the NFLPA has argued in the past that such information is proprietary.

This isn’t the first time the issue has arisen. CBS Interactive and NFL Players have been fighting over the issue in court since September 2008. CBS filed suit in Minnesota while NFL Players filed a countersuit in Miami a week later.

Richard Berthelsen, acting chairman of the NFLPA at the time, said in a September 2008 press release announcing the lawsuit that “It is just wrong for companies to use the rights of NFL players to generate revenues for their own benefit without any compensation to the players. NFL PLAYERS will take all steps necessary to protect its rights, and the rights of NFL players generally.”

Last year CBSSports.com announced that it would proceed with a college fantasy football offering after Major League Baseball Advanced Media lost a suit in which it claimed ownership of statistics generated by baseball players.

The U.S. Supreme Court in June refused to hear its appeal.