Players Union Claims Evidence Of Collusion Against Bonds

According to the AP, the Players Association claims it has evidence that teams colluded against signing Barry Bonds this year.  They’ve reached an agreement with MLB regarding the timing of their grievance.  The grievance will probably be delayed beyond Bonds’ trial, due to begin in March of 2009.  I am curious to see the nature of this evidence – comments made by execs to Jeff Borris, maybe?  The ’07 GM Meetings, where each GM took the floor and explained his offseason plans?