As the New England Patriots and former defensive end Jonathan Fanene await a ruling on the Patriots' grievance against him that seeks recovery of his $3.85 million signing bonus, the NFL Players Association has filed a separate grievance to remove team doctor Thomas Gill from his job, a league source with knowledge of the situation told National Football Post.

The grievance was first reported by ESPN Boston.

The grievance was filed recently and should be heard in the next month. NFLPA assistant executive director of external affairs George Atallah didn't reply to an email and telephone call seeking comment.

According to a source, the players' union obtained an internal email from the Patriots that suggests Gill wasn't operating in good faith in his treatment of Fanene when he was on the roster.

When the Patriots cut Fanene, they did so with a failure to disclose physical condition designation.

The Patriots have alleged that Fanene, who has an arthritic left knee, hid a prescription drugs dependency from them when he joined the team that included Vicodin and Motrin.

A hearing was conducted Tuesday that included testimony from Fanene, Patriots coach Bill Belichick, team doctor Thomas Gill and Fanene's agent, Angelo Wright.

A ruling is pending from an arbitrator.

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Aaron Wilson covers the Ravens for The Baltimore Sun.