I hadn't heard about this before now but that's really not surprising, what is surprising is that IF it indeed happened, what will happen to the NFL and future rules n-stuff ?
The NFLPA lawsuit, which was filed May 23, claims that the NFL imposed a secret salary cap of $123 million in 2010, despite the league agreeing to have no cap that season because of the lockout.
The NFL penalized the Washington Redskins, Dallas Cowboys, Oakland Raiders and New Orleans Saints for violating the cap. The league subtracted $35 million in cap space from the Redskins and $10 million from the Cowboys, and redistributed the money among 28 other clubs. The Oakland Raiders and New Orleans Saints were exempted from receiving their share of the money because of their own cap violations.
http://www.prosportsdaily.com/articles/nflpa-collusion-lawsuit-to-proceed-309570.html