With his contract talks reaching a stalemate with the Cardinals, receiver Anquan Boldin plans to fire agent Drew Rosenhaus.

Rosenhaus, who represents more NFL players than any other agent, had tried pressuring the Cardinals into trading the 28-year-old receiver.

“Regarding Anquan Boldin, let me say that I have great respect for him. I’m hopeful we can work this out and he can return to the Rosenhaus Sports family in the near future. We are proud to continue to represent his brother, D.J. Boldin,” Rosenhaus said in a statement to ESPN.com. “We would also like to take this opportunity to announce that we have signed Will Allen to a 2-year contract extension with the Dolphins worth $16.2 million. We are pleased to announce today that we have re-signed New Orleans Saints tight end Jeremy Shockey [to a representation agreement].”

Boldin reached out to other agents in recent weeks, according to a source. He spoke with Kennard McGuire, CAA agents Tom Condon and Ben Dogra, and two of Fitzgerald’s agents, Eugene Parker and Paul Lawrence.

Under NFLPA rules, a player must wait five days after firing his agent before hiring a new one.

Boldin apparently didn’t like the way Rosenhaus was going about negotiations with the Cardinals, although it’s hardly the agent’s fault if a team doesn’t want to re-work a contract when the player still has two years remaining on the current one. Still, it’s interesting that Rosenhaus has lost a big client like Boldin. Normally, players are seeking Rosenhaus’ negotiation tactics, not firing him because of them.