Who is left?
Sheldon Brown, CB, Browns. Age: 34.
Sheldon Brown is coming off a great year, serving as a terrific starter across from Joe Haden. He also held his own when Haden was out of the lineup. Unfortunately, he turns 34 in March, so his best days are behind him.
Jacob Lacey, CB, Lions. Age: 26.
Jacob Lacey started slow this season, but excelled ever since he was moved into the nickel role.
Quentin Jammer, CB, Chargers. Age: 34.
Quentin Jammer had his moments early in the 2012 season, but really wore down during the stretch. His starting days could be over.
William Middleton, CB, Jaguars. Age: 27.
Shawntae Spencer, CB, Raiders. Age: 31.
Cedric Griffin, CB, Redskins. Age: 30.
Marcus Trufant, CB, Seahawks. Age: 32.
Rashean Mathis, CB, Jaguars. Age: 33.
Terrence McGee, CB, Bills. Age: 32.
Brandon McDonald, CB, Buccaneers. Age: 28.
Elbert Mack, CB, Saints. Age: 27.
Bryce McCann (RFA), CB, Dolphins. Age: 25.
Ryan Mouton, CB, Titans. Age: 26.
Cassius Vaughn (RFA), CB, Colts. Age: 25.
Michael Adams, CB, Cardinals. Age: 28.
Stanford Routt, CB, Texans. Age: 30.
Chris Carr, CB, Chargers. Age: 30.
Jason Allen, CB, Bengals. Age: 30.
Will Allen, CB, Patriots. Age: 35.
Pat Lee, CB, Lions. Age: 29.
Justin King, CB, Steelers. Age: 26.
Nate Ness (RFA), CB, Panthers. Age: 26.
Justin Tryon, CB, Giants. Age: 29.
Michael Coe, CB, Cowboys. Age: 29.
D.J. Johnson, CB, Redskins. Age: 27.
Brian Witherspoon (RFA), CB, Giants. Age: 28.