In this Associated Press story , which cites a report Thursday in the Sports Business Journal, it’s being reported that the NFL Players Association has served subpoenas to the NFL, commissioner Roger Goodell and former NFLPA president Troy Vincent asking for all documents that could lead to clues of possible collusion.

Vincent, who now works for the NFL as the vice president of development after losing a bid for the union chief position that went to DeMaurice Smith, has been accused of meeting with NFL officials while he was still with the NFLPA and providing them with confidential union information.

From the AP story:

NFL spokesman Greg Aiello said, "We have no comment on any aspect of this litigation between the NFLPA and one of its former employees."

The union has acknowledged cooperating with a Department of Labor probe into the alleged meetings, which were revealed in a lawsuit filed against the union by Mary Moran. The longtime employee claims she was wrongfully removed from her job as director of human resources because of her role as a confidential informant in the investigation.

In court documents filed in District of Columbia Superior Court, Moran said she provided evidence that Vincent and other union members met with Goodell and Houston Texans owner Bob McNair, allegedly to provide the league access to confidential union information.

The NFL has steadfastly denied the allegations, noting that it's common for Goodell to meet with players and union executives, including Vincent.

--Josh Katzowitz
<i>For more NFL news, rumors and analysis, follow <a href="http://twitter.com/CBSSportsNF
L">@cbssportsnfl</a> on Twitter.</i>

An interesting post made by Pro Football Talk , citing Liz Mullen of the SportsBusiness Journal who wrote that there’s an ongoing federal investigation to determine if the NFL Players Association and the league itself have colluded with each other.

According to Mullen, via PFT, the Department of Labor is investigating whether NFLPA leaders conspired to give information to the NFL that would hinder the union in upcoming CBA negotiations. Allegedly, former NFLPA president Troy Vincent met with owners to weaken the stance of the NFLPA.

If any of this true, how devastating would this be for the members of the NFLPA? If you can’t trust your union – if you can’t trust former players like Vincent – to stick up for you, who the heck is going to do it? If true, it’d be a sad, sad day for the NFLPA.

--Josh Katzowitz

For more NFL news, rumors and analysis, follow @cbssportsnfl on Twitter.