Pro Football weekly

The Tennessee Titans have agreed to terms with Walker to take the roster spot left by the season-ending injury to Ryan Mouton.||||||| The 5-foot-11 Walker has played 93 games with 17 starts for the Giants, Green Bay, Baltimore and Minnesota. He also has eight interceptions and originally was a sixth-round pick by the New York Giants from Tuskegee in 2003.

The Minnesota Vikings have signed Walker to help an injury-depleted position.||||||| Walker was added to the roster Wednesday to fill a hole created by starting cornerback Cedric Griffin's season-ending right knee injury. Rookie cornerback Chris Cook's status is also in question this week because of a left knee injury, though he was on the field at the start of Wednesday's practice. The 29-year-old Walker played in 14 games last season for the Ravens.

Walker was inactive for Sunday's game against the Denver Broncos but no clear injury was given. Instead, it could be because he was called for a pass interference penalty in the fourth quarter of Baltimore's 17-14 loss to Cincinnati on Oct. 11 and gave up a 58-yard completion in the closing minutes of a 33-31 defeat at Minnesota a week later.||||||| Rookie Ladarius Webb spent the week practicing at Walker's nickel back position.