Dolphins head coach Mike McDaniel said Achane (shoulder) will not practice Friday and will be considered a game-time decision for Sunday's season finale against the Patriots, Omar Kelly of the Miami Herald reports.

Achane is seemingly trending toward receiving an official 'questionable' tag with the release of Friday's injury report, though McDaniel noted that Miami typically holds players who are unable to close the practice week with any on-field reps out of game action, per Barry Jackson of the Miami Herald. Meanwhile, the Dolphins are placing TE Darren Waller (groin) on IR on Friday, while WRJaylen Waddle (ribs) will practice in a limited capacity and be listed as questionable. With Miami already well out of playoff contention, the team could simply opt to take a cautious approach and preserve Achane's health. In that case, Jaylen Wright would stand to lead the team's backfield Week 18, while rookie Ollie Gordon would step into the No. 2 role, with newcomer Donovan Edwards also potentially available to mix in.

Brown (illness) returned to practice Friday, Ben Baby of ESPN.com reports.

After missing practice both Wednesday and Thursday, Brown's return to the field Friday has him trending in the right direction as Sunday's season finale against the Browns approaches. The Bengals' final injury report of the season will relay whether Brown heads into the weekend with a designation or fully cleared for Week 18 action.

Davis (calf/eye) did not participate in Thursday's practice, Jon Machota of The Athletic reports.

It's the second straight DNP to begin Week 18 prep for Davis, who rumbled for 103 yards on 20 carries against Washington on Christmas Day after No. 1 RB Javonte Williams (shoulder/neck) departed early. Williams has also been held out of practice the first two days this week, so the Cowboys' backfield could be severely depleted for the season finale against the Giants on Sunday. If neither Davis nor Williams is able to suit up in that game, Jaydon Blue figures to take on lead-back duties.

Williams (shoulder/neck) didn't practice Thursday, Jon Machota of The Athletic reports.

Williams hasn't practiced this week due to the shoulder/neck injury that he's been dealing with since a Week 15 matchup with the Vikings. He's still racked up 39 touches for 188 yards and two rushing TDs during that span, while No. 2 RB Malik Davis has turned his 38 touches into 163 total yards and one TD on the ground. Davis (eye/calf) also hasn't practiced this week, so rookie Jaydon Blue is the only healthy player at the position on the active roster.

Vidal (neck) practiced fully Thursday, Eric Smith of the Chargers' official reports.

Meanwhile, Omarion Hampton (ankle) didn't practice Thursday, and Hassan Haskins (concussion) was limited, so at this stage the composition of the Chargers' Week 18 backfield has yet to be determined. In the wake of his full practice, Vidal is on track to be available Sunday against the Broncos, but if the team elects to rest or limit key players apart from QB Justin Herbert (who will give way to Trey Lance this weekend), it's possible that Jaret Patterson and/or Amar Johnson will be elevated from the practice squad and see their share of touches alongside Vidal in Los Angeles' regular-season finale.

Hampton (ankle) didn't practice Thursday, Eric Smith of the Chargers' official site reports.

Hampton also logged a 'DNP' on Wednesday, and considering that the Chargers are planning to rest QB Justin Herbert (hand) in Week 18, it's possible that they'll err on the side of caution with Hampton, with the team's looming playoff run in mind. In any case, Friday's final injury report will reveal whether Hampton has a chance to be in uniform Sunday against the Broncos or instead will have to wait until wild-card weekend to see his next game action.

Corum (ankle) didn't take part in Thursday's practice, Adam Grosbard of The Orange County Register reports.

Corum made an early exit from Monday's loss in Atlanta due to an ankle injury that so far hasn't allowed him to mix into any drills in the meantime. He'll have one more chance to do so, or else he and fellow RB Kyren Williams (ankle, LP so far this week) may enter the weekend with designations for Sunday's game against the Cardinals.

Williams (ankle) practiced in a limited fashion Thursday, Adam Grosbard of The Orange County Register reports.

Both of the Rams' top two running backs are dealing with health concerns at the moment, but Williams at least has been able to log some on-field work, as opposed to Blake Corum (ankle), who was a non-participant Wednesday and Thursday. Ultimately, Friday's injury report will reveal if Williams and/or Corum carry designations ahead of Sunday's contest against the Cardinals.

Mostert (knee/ankle) did not participate in Thursday's practice, Ryan McFadden of ESPN.com reports.

Mostert's absence from Thursday's practice could be a maintenance day, given that the veteran running back was a full participant in Wednesday's session. His participation in Friday's practice will provide clarity on his status heading into Sunday's regular-season finale against the Chiefs.

McCaffrey (back) doesn't have a designation for Saturday's game against the Seahawks, Nick Wagoner of ESPN.com reports.

McCaffrey initially dealt with a back injury in the fourth quarter of this past Sunday's win against the Bears. Per David Lombardi of SFStandard.com, the issue was described as stiffness by the running back himself Tuesday, when he didn't practice, but McCaffrey got back on the practice field Wednesday as a limited participant and now is clear for Week 18. McCaffrey is four catches away from reaching 100 for the third time in his career.