The Redskins have re-signed free agent safety Vernon Fox to a multi-year contract, the team announced on Friday.

Fox, a fifth-year veteran, originally joined the Redskins in August 2006 after he was released by the Detroit Lions. Midseason, he entered the starting lineup after Troy Vincent was slowed by a hamstring injury.

Fox started six games and proved to be a capable performer, logging 42 tackles (31 solo) and one interception, off Jake Delhomme in the Redskins' 17-13 win over the Carolina Panthers in Week 12.

Fox, 5-10 and 200 pounds, also played a key role on special teams. He finished with 26 tackles on punt and kickoff coverage, including six tackles and a blocked punt in the Week 16 game at St. Louis.

"Vernon had a great impact for us last season despite joining the team after preseason," head coach Joe Gibbs said.

Fox spent two seasons each in San Diego and Detroit prior to joining the Redskins.