... their third defensive line addition of the past week today, signing former New Orleans Saints defensive end Charles Grant to a two-year contract.

Released by the New Orleans Saints in March three years into a seven-year, $63 million contract, Grant's deal with the Dolphins is believed to be worth up to $4.5 million.

The Dolphins also released rookie guard Dimitri Tsoumpas to bring the team's roster down to the 80-man limit.

Tsoumpas joined the Dolphins in January after two seasons with the CFL's Calgary Stampeders, including an All-Star selection in 2009.

Background

Originally drafted by the Saints 25th overall out of Georgia in 2002, Started six of 16 games as a rookie an...

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