The Oakland Raiders officially added linebacker help, announcing that they have signed veteran Derrick Johnson.

Johnson is familiar with the AFC West, joining the Silver & Black after 13 seasons with the Kansas City Chiefs after being selected 15th overall in the 2005 NFL Draft. Since then, he has been named to four Pro Bowls and named to the AP All-Pro First Team in 2011.

Johnson has appeared in 182 games, totaling 1,262 tackles, 27.5 sacks, 23 forced fumbles, eight fumble recoveries, 14 interceptions and 77 pass defensed.

The signing gives a relatively young Raiders linebacker room a veteran to learn from, while also presenting a stabilizing force in the middle of the defense.

To team waived defensive back Darius Hillary to make room Johnson.