The NFL and its players’ union have begun Day 5 of negotiations with a federal mediator.

Bears linebacker Hunter Hillenmeyer joined NFL Players Association executive director DeMaurice Smith, Ravens cornerback Domonique Foxworth and ex-player Sean Morey arrived at the Federal Mediation and Conciliation Service in Washington, D.C.., shortly before 10 a.m. Tuesday.

Commissioner Roger Goodell walked in by himself about 40 minutes earlier.

Representatives of both sides filtered in during the morning, set to resume talks after more than 25 hours of meetings over the previous four days.

The two sides are working to avoid a work stoppage that could begin when the NFL’s labor deal expires at the end of the day March 3.

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