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Special Master Stephen Burbank heard arguments Thursday regarding the NFL’s effort to dismiss the grievance filed by the Cowboys and the Redskins regarding $46 million in combined salary cap space for 2012 and 2013.

Per a source with knowledge of the hearing, the NFL argued that the union’s agreement to the cap penalties prevents the grievance. The NFL also argued that the Commissioner possesses the full and complete ability to adopt any measures aimed at ensuring competitive balance.

As to the latter argument, that’s a strong statement. And it would be interesting to know how many owners believe that the Commissioner indeed has such broad, sweeping powers. Especially since those powers, if they exist, can be used against any of the other owners, pretty much at any time.

Burbank has taken the motion to dismiss under advisement. If it is granted, the grievance will end, subject to the relevant appeal procedures. If it denied, the grievance will proceed before Burbank.