Seahawks sign Jeremy Crayton and Keelan Johnson, release Jimmy Staten, Dakorey Johnson

The Seahawks made a few changes on their roster Monday morning, signing a pair of defensive backs to bolster their depth at an injury-riddled spot. New to the team are former Southern Arkansas cornerback Jeremy Crayton and Arizona State safety Keelan Johnson.

Crayton tried out for the Seahawks when Seattle held their rookie mini-camp in May, so the Seahawks already had some good info on the 6'0, 190 pound defensive back. Keelan Johnson was a draft eligible UDFA in 2013 and has spent time with the Dolphins, Eagles, and Cowboys, and boasts a solid athletic background. He was a Combine invite, and at 5'11, 209 pounds, he ran the forty in 4.54 seconds (improved it to 4.41 at his pro day), had a 36.5-inch vertical jump, a 10-foot broad, a 4.07 second short-shuttle and a 6.77 second 3-cone drill.

The signings are important because Seattle's dealing with some injuries (and a holdout) at the defensive backs position group. Earl Thomas and Tharold Simon are coming back from shoulder surgeries, Jeremy Lane is still out with knee and arm injuries, Kam Chancellor is still holding out, Richard Sherman has a slight hip flexor issue, Mohammed Seisay injured his groin on Friday vs. the Broncos, and Douglas McNeil, a recent corner-convert, also got nicked up in the game. Ryan Murphy has been out as well, and Will Blackmon was sitting out of practice today with an undisclosed issue (could just be a rest day). You could say that the Seahawks have some injury issues at the position right now.

Gone (for now) are defensive tackle Jimmy Staten and linebacker Dakorey Johnson. I thought that Staten -- a 2014 5th round pick by the Seahawks -- looked pretty good vs. Denver on Friday, but Seattle has some good numbers at the position and evidently decided he didn't show enough. Assuming he passes through waivers, it wouldn't surprise me if Staten comes back at some point down the line.