Walker has an ACL injury that will cause him to miss the entire 2016 season, Mike Klis of The Denver Post reports.
Walker was carted off the field during Monday's practice, and an MRI confirmed the worst case scenario. The veteran defensive lineman was projected to backup Derek Wolfe on the left side of the line this season. Calvin Heurtelou now figures to slide into that role.
Ware (undisclosed) has been removed from the non-football injury list and will practice on Tuesday.
It was initially announced that Ware would return to practice next week, but it seems the team decided to bring him back a bit sooner. The veteran linebacker has been medically cleared to play for a few weeks now, but the team has been keeping him out to allow him to rest so that he's fresh for the regular season. At this point he isn't expected to play in Denver's final two preseason games, allowing Shane Ray to continue to see snaps with the starting unit.
Talib (leg) is expected to play in Saturday's matchup with the Rams.
Talib began training camp on the non-football injury list after suffering a gunshot wound to the leg in June, and, though he's practiced, he has yet to play in a preseason tilt. He's unquestionably one of the team's top two corner backs and will start opposite Chris Harris during the regular season. It's yet to be determined if Talib will start on Saturday if he does indeed play.
Edwards (hip) will not need surgery on his sprained hip, Scott Bair of CSN California reports.
Edwards injured his hip while tackling Cardinals' running back David Johnson during Thursday's preseason contest. Edwards was given a four-to-six week timetable, but it was questionable if he needed surgery or not. Now that it's clear he just needs time and not surgery, he'll likely be able to return sooner than he otherwise would've, though his status for the regular season opener is still in question.
Richard (knee) worked with team trainers on the side at Saturday's practice, Vic Tafur of the San Francisco Chronicle reports.
Despite missing Oakland's first two preseason games, the team remains optimistic that Richard will be ready to go for the start of the regular season. Richard has been impressive in his small sample size and the Raiders are eagerly looking for someone who can give Latavius Murray a breather every once in a while.
Smith (suspension) has entered a treatment center, ESPN reports.
Smith's reason for seeking treatment is unclear, but it comes just days after a Periscope video titled "Fire up session" surfaced of an unidentified man, suspected to be him, talking about a hand-rolled cigarette shown on screen. In wake of that video, which appeared under an account previously used by Smith, the NFL has launched an investigation into whether he violated protocols required of a suspended player seeking reinstatement from a substance abuse violation. While that investigation continues, Smith's move to now enter a treatment facility hardly seems coincidental, and more details regarding his situation should surface soon.
Reece has been suspended four games for violating the NFL's policy on performance enhancing drugs, CSN Bay Area reports.
Reece, who will sit out Sunday's season finale against the Chiefs, is thus eligible to return to action after the Raiders' third game of the 2016 season. In the meantime, he can participate in all of the team's offseason and preseason practices and games.