Several attorneys for claimants in the estimated $1 billion NFL concussion settlement have pushed back against new rules a federal court recently imposed that place limits on which doctors ex-players can use to establish neurocognitive impairment diagnoses.

Philadelphia attorneys Gene Locks of Locks Law Firm and Sol Weiss of Anapol Weiss, as well as Steven Marks of Podhurst Orseck in Miami, filed motions Thursday in the class action settlement asking U.S. District Judge Anita Brody to reconsider her April 11 ruling, which, among other things, established a leadership counsel for the panel that hears appeals of claims and barred players from using neurologists who's primary practices are more than 150 miles from the player's home.

The 15-page motion the attorneys filed said the new rules created additional and unnecessary hurdles for the players and asked the court to set a hearing regarding the issues.