Norfolk, Va. ? Federal prosecutors have offered Atlanta Falcons quarterback Michael Vick a plea deal that would recommend he serve at least one year in prison on a felony dogfighting conspiracy charge, according to two sources familiar with the discussions.

Vick has until 9 a.m. Friday to accept the offer or could face additional charges when a grand jury convenes next week in U.S. District Court in Richmond, one of the sources said. At least two of Vick’s attorneys have been discussing the offer with prosecutors since early this week, the source said.

Two co-defendants are scheduled to appear in court Friday morning, where they are expected to accept deals and enter guilty pleas.

Quanis L. Phillips, a friend of Vick’s since middle school and a high school football teammate of his in Newport News, Va., has a plea agreement hearing set to begin at 9 a.m. Friday. That is to be followed by a plea agreement hearing for a second co-defendant, Purnell A. Peace.

The third co-defendant in the case, Tony Taylor, pleaded guilty and accepted a deal last month. His sentencing is set for Dec. 14.

Taylor signed an agreement in which he promised to cooperate fully with prosecutors.