More than 100 former professional football players, including former Atlanta Falcons Jamal Anderson, Chris Doleman, and O.J. Santiago, are adding their names a growing list of players suing the NFL.

They join more than 1,500 other players who claim that the National Football League hid the dangers of concussions from them.

The latest lawsuit, filed Thursday in U.S. District Court in Atlanta by attorney Mike McGlamry, states that the NFL "repeatedly refuted the connection between concussions and brain injury."