CHATTANOOGA, Tenn. -- Three former college football players are suing the NCAA, saying it failed to educate them about the risks of concussions and didn't do enough to prevent, diagnose and treat brain injuries.

Chris Walker and Ben Martin, who played for Tennessee from 2007-11, and Dan Ahern, who played for North Carolina State from 1972-76, filed a class-action lawsuit in federal court in Chattanooga.

The complaint alleges that the NCAA failed to meet its obligation to former players and because of its neglect the players are "suffering the dramatic consequences." The lawsuit seeks an NCAA-funded medical-monitoring program for former football players.

The lawsuit is similar to one filed in 2011 in Illinois. Attorneys in that case recently asked a judge to make it a class-action suit.