Chris Mortensen of ESPN is reporting that retired Green Bay Packers quarterback Brett Favre has taken the next big step toward ending his retirement.

According to Mortensen, Favre this afternoon faxed a letter to the NFL offices in which he formally sought his reinstatement. That means NFL Commissioner Roger Goodell will soon reinstate Favre, and then he’s back on the Packers’ active roster.

At that point, the Packers will have a choice to make. They can either release Favre and let him become an unrestricted free agent, they can trade him, or they can allow him to show up to training camp as an active member of the team. The ball is in Ted Thompson’s court.