[Bette]

RB Ryan Grant is an exclusive free rights agent, which means his 2008 options are play for the Packers or play for no one.
Until he signs his tender, he's not under contract and is not required to attend any team activities.
He has been present for voluntary work outs and is attending mandatory mini camp and is participating in individual drills but not team drills.
Its a function of the system that underafted players who sign one year deals have no leverage until they have three seasons behind them.

ProFootballTalk.com - GRANT AT MINICAMP, BUT NOT PRACTICING

Any idea what he is trying to do here? Doesnt seems like he has much choice.

[Lefty Noob]

Obviously, he's banking on the Packers needing him more than he needs them, and thus caving and paying him more money.
Guess we'll have to wait and see if his gambit works or not.