WP updated their article from earlier with this:
"Update: 3:37: Redskins officials have told people in the league that they are considering going to court to seek an injunction that would hold up the start of free agency or threatening that move in a bid to bolster their negotiating leverage with the league. Those conversations were confirmed by two people with knowledge of them.
Both said that the Redskins have compelling arguments they could make in an attempt to convince a judge that they would suffer irreparable harm if they are not granted an injunction. But others familiar with the case have said they don’t believe the Redskins have legal arguments that weren’t already considered, and rejected, by an arbitrator."
Redskins put contract talks on hold as they work to recoup salary cap space–Updated
Love that they're going to the mat on this. They won't win in court though. Leverage is all they can hope for.