Bailey has been suspended four games for violating the NFL Policy and Program for Substances of Abuse.
With Bailey -- who has recorded 12 catches for 182 yards and a touchdown in eight game to date -- set to miss time, it's now understandable that the Rams are expected to work out wideouts Hakeem Nicks, Wes Welker and Vincent Brown, per ESPN's Adam Caplan.
Keenum (concussion) is inactive Sunday against the Bengals, ESPN's Nick Wagoner reports.
Keenum was limited in practice all week while going through concussion protocol, and all indications leading up to the Sunday matchup had suggested Nick Foles would re-take the reins at quarterback. Keenum didn't necessarily "wow" anyone last week after completing 46 percent of his passes for 136 yards and a score, but had been expected to be the starting quarterback if healthy. Foles will now get another chance after nine underwhelming performances, but whoever claims the full-time job moving forward will likely be limited by the St. Louis run-first offense.
Quinn (hip) in inactive Sunday against the Bengals, ESPN's Nick Wagoner reports.
Quinn has sat out two of the past three games, and was on the field for just 14 snaps Week 10 against the Bears. After missing practice all week, it's not overly surprising to see him sit, as the Rams may want to save him to help compete for a Wild Card spot during the season's final stretch. His absence is certain to adversely affect the St. Louis pass rush.
Zuerlein (groin) is inactive Sunday against the Bengals, ESPN's Nick Wagoner reports.
Zuerlein was a late addition to the injury report after suffering a groin injury during Friday's practice, and that ailment turned out to be enough to hold him out of action. According to the Rams' official site, the recently-signed Zach Hocker will get the starting nod at kicker Sunday afternoon.
Brown (hamstring) is listed as probable for Sunday's game against the 49ers, CSN Bay Area reports.
Brown may still be somewhat bothered by his hamstring, but the injury didn't stop him from playing a full complement of snaps in Week 11 against the Bengals. He could, however, lose a few of those snaps to Michael Floyd (hamstring), who is listed as questionable for Sunday's game in San Francisco.
Bucannon (concussion) is listed as questionable for Sunday's game in San Francisco, CSN Bay Area reports.
According to Darren Urban of the Cardinals' official website, head coach Bruce Arians said the team will be careful with Bucannon, who probably won't be needed in this matchup. There's still some chance the safety/linebacker suits up, but it sounds as if the Cardinals are more inclined to wait a week.
Cardinals defensive end Calais Campbell was a one-man wrecking crew Sunday against the Rams, racking up 11 tackles (10 solo), three tackles for loss, two quarterback hits, and 0.5 sacks.
Campbell was everywhere in Week 4, but the Cardinals' defense itself was unable to force a turnover, after accumulating seven (all interceptions) over the course of the first three weeks of the season. Stuck in the 50-to-75 tackle territory in each of the past five campaigns, he currently has 25 to his credit, which is a career-best pace. On the other side of the coin, the half sack Sunday was his first in the category in 2015, so he has some work to do to uphold his standard (6-to-9 sacks in six consecutive seasons).
Fitzgerald (ankle) is listed as probable for Sunday's game in San Francisco, CSN Bay Area reports.
Fitzgerald returned to a full practice Friday, following limited sessions Wednesday and Thursday. He'll square off against one of the NFL's worst defensive backfields, but the matchup may lead to a heavy dose of Arizona's Chris Johnson-led running game.
Floyd (hamstring) is expected to play Sunday against the 49ers, according to Ian Rapoport of NFL Network.
Floyd, who has scored in his last four games, missed last Sunday's game against the Bengals and was unable to practice fully this week due to the ailment. He's the least healthy of the Cardinals't three wideouts, though he's clearly a popular option for quarterback Carson Palmer, as evidenced be his back-to-back games with over 100 yards.
Johnson (knee) is listed as probable for Sunday's game in San Francisco, CSN Bay Area reports.
Following limited sessions Wednesday and Thursday, Johnson logged a full practice Friday. He should be cleared for his usual workload against a 49ers defense that he ripped for 22-110-2 back in Week 3.
Peterson (ankle) is listed as questionable for Sunday's game in San Francisco, CSN Bay Area reports.
According to Darren Urban of the Cardinals' official website, head coach Bruce Arians said Friday that he expects Peterson to play in Sunday's game. The star cornerback missed practice Wednesday and Thursday, but he then returned as a limited participant Friday morning. There is some chance Peterson will be active but play fewer snaps than usual.