First, as for facts on the ground? The Major League Baseball Players' Union had said it had found evidence of collusion against Bonds, but had reached agreement with MLB not to pursue that in 2008. Bonds, presumably, was waiting until his criminal situation played out to take action himself.
With that, let's look at Bonds' two possible legal routes
Briefly, on that, the grievance angle?
Barry? Join Manny, Mark McGwire, Rafael Palmeiro, Sammy Sosa, Roger Clemens and others, and just walk away. Along with your anti-Ruth comments and other baggage. (Oh, speaking of, this will likely only hurt your case for the Hall of Fame with BBWAA voters.) Even A-Rod has learned — for now at least — to take his lumps.