Published: Jul 11, 2012 12:06 PM EDT
Updated: Jul 12, 2012 6:31 AM EDT

COLUMBIA, S.C. (AP) - Stephen Davis and Corey Miller are among five former NFL players from South Carolina joining a lawsuit alleging the NFL concealed information linking football-related head injuries to permanent neurological problems.

Davis, from Spartanburg, was a three-time Pro Bowl running back who played for Washington, Carolina and St. Louis from 1996-2006. Miller is from Pageland and spent nine seasons in the NFL with the New York Giants and Minnesota Vikings.

Others joining the lawsuit are ex-NFL players Henry Taylor from Barnell, Travis Williams from Columbia and Langston Moore from Charleston.

Documents to get the five and Davis' wife DeeDee as part of the class-action suit were filed July 5 in U.S. District Court in Columbia. Plaintiffs lawyers say the master complaint involves thousands of retired players.