This move comes just hours after Miami opened the doors to its Davie, Fla. practice facilities for the first day of training camp.
Crowder, once thought of as an asset in Miami, is going into his seventh season. His previous six seasons have been spent with the Dolphins after being drafted out of the University of Florida in 2005.
Perhaps what Crowder is known for best is his mouth. Crowder has been singled out by the media and numerous coaches around the league for having more bark than bite.
He has been a starter since being drafted by the Dolphins, but the now free agent linebacker will have to find a home elsewhere.
Crowder was decent for Miami, but he never seemed to do enough to warrant his $5 million salary in 2010.
With newly freed cap space, Miami is expected to make a move at another inside linebacker or a pass rusher. Names that have been linked with the Dolphins are Kevin Burnett, formerly of the San Diego Chargers, and Manny Lawson, who used to play for the San Francisco 49ers.
Lawson also has ties with Mike Nolan. There are no rumors yet of a Lawson-Nolan reunion in South Florida, but the move makes sense.
Miami has also been linked to safety Dashon Goldson, who is another 49ers free agent familiar with Nolan.
As the official signing period gets under way later this afternoon, don't be surprised to see the Dolphins make several moves before the weekend is over.