The Dolphins are edging toward filling all their needs before the draft.
The Dolphins have been in talks with Grimes for a while now, so the signing comes as little surprise. They also have a pretty desperate need at cornerback after losing Vontae Davis and Sean Smith in the span of less than eight calendar months.
Grimes is 5'10" and around 180 pounds. He's not the size of Davis or Smith, who were both over 6'0" and 200 pounds.
If he is any indication, though, the Dolphins don't mind sacrificing a little size for some versatility. The same goes for last year's signing of Richard Marshall, who stands 5'11" and weighs 190 pounds. Unlike Smith, who was seen strictly as a man-cover corner, Grimes can play man or zone coverage, but his strength is in man.
In 2011, Grimes ranked fourth in the NFL in cover snaps per reception and tops in the league in yards per cover snap, both outstanding measures of efficiency at the cornerback position. Not only was Grimes allowing very few receptions, he was not allowing many yards on those receptions.
The big question with Grimes, though, is health. He missed all but one game of the 2012 season with an Achilles injury. Falcons coach Mike Smith recently told reporters that Grimes' recovery is going "outstanding," but at this point, it's not his problem anymore.
The Dolphins will find out soon enough.
Their offseason work is not done on defense. They could still use another cornerback and are still looking for a true 4-3 defensive end opposite Cameron Wake.
Adding Grimes to the secondary brings them one step closer to completing the puzzle.
Erik Frenz is also a Patriots/AFC East writer for Boston.com. Follow Erik on Twitter and "like" the AFC East blog on Facebook to keep up with all the updates. Unless otherwise noted, all quotes obtained firsthand or via team press releases.