S Tracy Walker remained a starter for the Lions in Week 3, but his playing time fell from 98% and 100% in the first 2 games to just 67% in the loss to Baltimore. Dean Marlowe and Will Harris tied at 76% to lead the position for the Lions. Each played 5 more snaps than Walker. We'll see where this goes, but it'll be tough to trust Walker against the Bears next Sunday.

The Lions have downgraded S Tracy Walker to out for today’s game against the Cardinals with an illness. Rookie Jalen Elliott started in Walker’s place last week, with Walker on the COVID list.

The Lions have placed S Tracy Walker on the COVID list, which will knock him out for Sunday's game against the Broncos. C.J. Moore looks like the next guy up at safety, while S Dean Marlowe gains tackle upside.

Lions S Tracy Walker left Sunday's game with a concussion. If he can't complete the league protocol in time for next Sunday's visit to Cleveland, S Dean Marlowe would fill in next to Will Harris.

The Lions have ruled S Tracy Walker out for Sunday's game against the Vikings. Walker missed every day of practice this week, but it's still a surprising situation after Walker played every snap in the Week 8 loss to the Colts. Walker's absence improves the matchup for Vikings TE Irv Smith. S Will Harris figures to step in for Walker.

Lions S Tracy Walker entered Week 11 questionable with a right knee injury that cost him the previous 2 games. He left Week 11 early with a right knee injury. HC Matt Patricia said afterward that he didn't know whether it was the same injury, according to ESPN's Michael Rothstein. We'll see about the outlook here, but IDP owners should expect to miss Walker for at least the next game. Even with Walker active against the Cowboys, Tavon Wilson and Will Harris still started at safety. Wilson looks like a full-timer whether Walker's in or out. Harris' role depends on Walker's involvement.