Walker (knee) didn't participate in Wednesday's practice.

EDGE Analysis

Walker sat out two games with a knee injury and seemingly aggravated this issue during his return to action. The second-year safety's status will remain uncertain unless he can take the field in full capacity before Sunday's game against the Redskins. If Walker's unable to go, Will Harris and Miles Killebrew are expected to rotate in.

Walker was forced out of Sunday's game against the Cowboys with a knee injury, Tim Twentyman of the Lions' official site reports.

EDGE Analysis

Walker entered Sunday with a questionable tag due to a knee injury, so this issue may be related. If Walker's unable to shake off his injury during halftime, it's likely Miles Killebrew fills in at free safety.

Walker (knee) is active for Sunday's game against the Cowboys.

EDGE Analysis

Walker didn't practice until Friday when he took the field in a limited fashion, but he made enough progress to be deemed ready to rock. The 2018 third-round pick will start at free safety, and he'll look to build on the 56 tackles he's recorded through seven contests.

Walker (knee) did not practice Wednesday.

EDGE Analysis

Walker has missed two straight games due to a lingering knee injury, and he has yet to resume practicing. The second-year pro will need to ramp up his reps in practice as the week continues for any chance of suiting up against the Cowboys on Sunday.

Walker (knee) was ruled out for Sunday's game against the Bears.

EDGE Analysis

Walker will miss his second straight game with the knee injury after not practicing this week. Miles Killebrew (concussion) was also ruled out, likely leaving C.J. Moore to start next to Tavon Wilson at safety.

Walker (knee) didn't participate in Wednesday's practice.

EDGE Analysis

The second-year pro missed his first career game in Week 9's loss to the Raiders. Walker's an every-snap player when healthy, and he generated 56 tackles (49 solo) and five pass breakups over seven games. He should be considered a worthy IDP asset once he's back to full speed, but he's in danger of missing Sunday's matchup against the Bears.

Walker (knee) is ruled out for Sunday's contest against the Raiders, Michael Rothstein of ESPN.com reports.

EDGE Analysis

Walker didn't practice in any capacity this week, so his lack of availability doesn't come as much of a surprise. Expect Miles Killebrew to play an increased role in Detroit's secondary as long as Walker is unable to go.

Walker (knee) is not practicing Wednesday.

EDGE Analysis

Walker suffered a knee injury during Sunday's win over the Giants and is considered day-to-day. His availability for Week 9 against the Raiders will likely come down to the extent of his participation in practice Thursday and Friday. Should Walker be forced to miss any time, Miles Killebrew would be the favorite to start at free safety.

Walker (knee) is considered day-to-day going forward, Kyle Meinke of MLive.com reports.

EDGE Analysis

Walker was unable to return to Sunday's victory over the Lions due to a knee injury. While it is not considered serious, it sounds like the team will exercise caution in the immediate future. Should he ultimately have to miss any time, Miles Killebrew would be the prime candidate to replace him at free safety, while C.J. Moore would subsequently see an increased role providing depth. More clarity on his status should come as the week progresses.

Walker (knee) is officially out for the reminder of Sunday's game against the Giants, Tim Twentyman of the Lions' official site reports.

EDGE Analysis

Walker left the game early in the fourth quarter, and as evidenced by this news, won't have the opportunity to return. Will Harris should continue to see an increase in snaps at strong safety, and expect the team to update Walker's status in the coming days.