CSN Bay Area

The Raiders added some depth to their secondary by signing former Carolina cornerback James Dockery.

Dockery announced his move on Twitter.

[BAIR: Report: Raiders expected to sign QB Christian Ponder]

He’ll be a backup in Oakland, after playing occasionally during his four-year NFL career. He could also be an asset on special teams if he makes the 53-man roster.

He has just two career starts, and none since 2012.

DJ Hayden, TJ Carrie and Keith McGill are currently the top cornerbacks on the roster. General manager Reggie McKenzie planned to go with youth at corner, and now has safeties Charles Woodson and Nate Allen to back them up.

Also, punter Steve Clark announced on Twiter that he signed with the Raiders. He will be a training camp leg acquired to help starter Marquette King. Clark last punted for Auburn University in the 2013 season. He spent some time with the Denver Broncos last offseason and in 2014 training camp.