David Frederick, a lawyer for the plaintiff, found no objection to the strategy despite it coming off as a gimmick.

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Paul Clement, former U.S. solicitor general during the George W. Bush administration, represented the NFL. David Frederick, who has argued a number of Supreme Court cases, spoke for the retired player plaintiffs.

CNN: NFL wants players' suit over concussions dismissed

But plaintiffs, led by lawyer David Frederick, said federal court is the appropriate venue for a case accusing the NFL of negligence and fraud, including assembling a "sham committee" in the 1990s to address the head-injury problem and knowingly hiding information from its players on the risks of brain damage from playing football allegations that the NFL flatly denies.

WSJ: NFL Attacks Head-Injury Suit