NEW ORLEANS — The NFL denies accusations it covered up retractions made by key witnesses in its bounty investigation, or that Commissioner Roger Goodell has placed gag orders on Saints employees and others who could help punished players clear their names.

Lawyer Peter Ginsberg, who represents suspended Saints player Jonathan Vilma, made the accusations when punished players appeared earlier this week for an appeal hearing, a full transcript of which has been obtained by The Associated Press.

NFL spokesman Greg Aiello says claims of a gag order are "completely untrue," and that no potential witnesses were instructed by the league to stay away from Monday's hearing.

The transcript also shows that the NFL Players Association formally asked Goodell to recuse himself from ongoing appeal proceedings, contending that he is incapable of ruling "without the appearance of bias."

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"The commissioner has publicly appeared on television and in other (forums) defending the discipline," NFLPA attorney Jeffrey Kessler said. "We would ask that the commissioner step down, to the extent that these proceedings continue, as the decision maker and that a neutral decision maker be appointed in his place."

The early portions of the transcript detail a series of verbal jousts that Ginsberg sought to deliver to the commissioner before leaving the appeal hearing early in protest.

In discussing witnesses he has been unable to speak with, Ginsberg told Goodell, "You have made threats to keep them from talking to us. You have refused to have them even participate in today's proceedings."