PALM BEACH, Fla. -- It seems the rivalry between the New York Giants and the Dallas Cowboys just got deeper this spring with Giants owner John Mara saying the Cowboys wouldn't win their grievance against the league, player's union and NFL management council over losing $10 million in salary cap space.

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On Tuesday, the NFL owner ratified the agreement between the league and player's union that takes away $36 million in salary cap space from the Redskins and $10 million from the Cowboys.

And now, the Giants and Cowboys will meet in the NFL season opener Sept. 5 at Met Life Stadium.

Cowboys owner Jerry Jones said his relationship with Mara is fine but, "I would like to settle this on the field. Our relationship is good from my perspective."

When asked about a halftime boxing match, Jones joked, "Not really. We will have all of this in the rear-view mirror hopefully by the time we get to this game."

Jones also denied any apparent rift with NFL commissioner Roger Goodell over the decision.

"That is not correct," Jones said. "He's been sensitive and respectful."

The Cowboys believed they were wronged in losing $10 million against the cap for backloading contracts during the 2010 uncapped year. At the forefront is wide receiver Miles Austin's contract.

Austin signed a six-year contract extension worth $54 million and paid him a $17 million base salary, which worked within the rules of an uncapped season. In a capped season, players are normally given large signing bonuses that are prorated over the life of the contract which comes up with a salary-cap charge.

The original deal had Austin getting a 2011 base salary of $8.5 million. The Cowboys created salary-cap room prior to last season by lowering Austin’s base to $685,000 and turning $7.855 million into signing bonus, which is a common practice by teams across the league.

It seems the Cowboys acted within the rules of the collective bargaining agreement, but the NFL still took action.

"We want to do and stay within the collective bargaining agreement as to how we express and what we do to show we disagree with this cap adjustment," Jones said. "We can’t talk about it and shouldn’t talk about it."