You're referring to a Temporary Restraining Order, I believe.
With the union agreeing to the CBA, I'm thinking that the first 2 steps of the NFL's process need to be met first, but I may be wrong in that assumption. I actually started a thread about it and haven't seen any responses from tagged posters such as Miguel, Deus Irae, or ctpatsfan77. I'm wondering if the thread was moved, or merged? I haven't had the opportunity to check in today, so I'll have to try and track it down.
I believe that the appeals process and arbitration need to be met prior to any federal intervention, aside from a defamation lawsuit like Jonathan Vilma initiated. Although it didn't get very far, it did help to reduce his suspension. Again....I'm unsure of the timeframe, though.
EDIT: (here is the timeframe for Vilma, for what it's worth):
May 2012--suspended for entire 2012 season, goes through the CBA/NFL process and finally has his case heard in federal court during training camp/late summer
Sept. 2012--case is overturned by the 2nd arbitration process, forced through federal court
Oct. 2012--Goodell is disappointed in the arbitrator's ruling, and
RE-SUSPENDS him
http://espn.go.com/nfl/story/_/id/8...ita-anthony-hargrove-overturned-appeals-panel
Dec. 2012--Tagliabue reviews the re-suspension and overturns it on 12/11/12
Jan. 2013--Vilma's defamation of character suit vs. Roger Goodell is dismissed
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Long story short, Vilma somehow plays in 11 games, and Goodell is quite pissed.