White struggled with his throwing accuracy during a disappointing rookie season in 2009, when he failed to complete any of his five passes in limited duty. The Dolphins kept three quarterbacks -- Chad Henne, Chad Pennington and Tyler Thigpen.
The Dolphins kept two undrafted rookie free agents at receiver, Roberto Wallace and Marlon Moore. John Nalbone beat out Martin for the backup tight end job.
Also failing to make the team's final cut were linebackers J.D. Folsom, Austin Spitler, Erik Walden and Chris McCoy; defensive linemen Ryan Baker, Lionel Dotson and Montavious Stanley; defensive backs Kevin Hobbs, Ross Weaver, Nate Ness and Jonathon Amaya; receiver Julius Pruitt; fullback Rolly Lumbala; and offensive linemen Donald Thomas, Andrew Gardner, Andrew Hartline and Ray Feinga.