Saints head coach Darren Rizzi announced Thursday that Rattler will start versus the Packers on Monday if Derek Carr (hand) is unavailable, Ross Jackson of WWL Louisiana reports.

Rattler logged a solid showing after replacing Jake Haener under center during New Orleans' loss to Washington in Week 15, completing 10 of 21 passes for 135 yards and one touchdown, including a near last-second comeback. At this stage, Carr's Week 16 status is iffy, with Mike Triplett of NewOrleans.Football relaying that Rizzi indicated that the veteran QB would probably have to get in a practice by Saturday in order to play Monday.

Mahomes (ankle) doesn't carry an injury designation for Saturday's game against the Texans, Adam Teicher of ESPN.com reports.

Mahomes, who was listed as a full practice participant Tuesday through Thursday, thus is cleared to start versus Houston. In terms of how the QB looked at practice this week, head coach Andy Reid noted that Mahomes "did look good out there. He moved around pretty good," while wideout DeAndre Hopkins said that Kansas City's QB looked "like he always does.'' With Mahomes' availability confirmed, the team also appears poised to welcome back speedy wideout Hollywood Brown (shoulder, no injury designation) who is on IR but is expected to be activated by the Chiefs ahead of Week 16 action.

Fields (abdomen) did not practice Thursday and is ruled out for Sunday's matchup against the Ravens, Brooke Pryor of ESPN.com reports.

Fields hasn't yet practiced in any capacity since sustaining an abdomen injury during Pittsburgh's loss to the Eagles in Week 15. He picked up the injury on an eight-yard rush in the second quarter of the Steelers' loss. Until Fields is cleared to retake the field, Kyle Allen handle backup quarterback duties behind Russell Wilson.

Chiefs head coach Andy Reid said Thursday that Mahomes (ankle) "will most likely" start Saturday's game against the Texans, Nate Taylor of The Athletic reports.

Mahomes sustained a high-ankle sprain during Sunday's win over the Browns, but the issue is clearly less severe than the injury he suffered two years ago during the divisional round of the AFC playoffs. The star quarterback managed to practice in full Wednesday, potentially putting him on track to head into Week 16 action without an injury designation at all. Meanwhile, Reid also offered optimism that wide receiver Hollywood Brown (shoulder) will be activated from IR and make his season debut versus Houston on Saturday, Pete Sweeney of ArrowheadPride.com reports.

Smith (knee) practiced fully Wednesday, Michael-Shawn Dugar of The Athletic reports.

Smith injured his right knee in the second half of this past Sunday's loss to the Packers and wasn't able to return. He was able to work out Monday, then received encouraging results after undergoing tests on his knee. With no limitations to begin Week 16 prep, Smith thus is set to remain the Seahawks' starting quarterback Sunday against the Vikings.

Tagovailoa was a limited participant at practice Wednesday due to a hip injury, David Furones of the South Florida Sun Sentinel reports.

Tagovailoa's listed limitations make his status worth tracking ahead of Sunday's game against the 49ers, but so far there's been nothing to suggest that the quarterback is in danger of sitting out. He'll have two more chances to put in a full practice and erase any concerns about his status heading into the weekend.

Mayfield didn't practice Wednesday due to a knee injury.

In addition to Mayfield, three key skill-position players for the Buccaneers -- wideout Mike Evans (rest), tight end Cade Otton (knee) and wideout Sterling Shepard (foot) -- sat out the first practice of Week 16 prep, while running back Bucky Irving (back/hip) was a limited participant. As a result, the group will be monitored as the week goes on to see who will be available for Mayfield in the event the quarterback also is cleared to play Sunday at Dallas.

Mills (illness) was a full participant in Wednesday's practice.

Mills was a DNP for Tuesday's walkthrough practice due to an illness. It appears he's past the issue and is on track to serve as Houston's backup quarterback behind C.J. Stroud against the Chiefs on Saturday.

O'Connell (knee) was a full participant in Wednesday's practice, Paul Guteirrez of ESPN.com reports.

O'Connell's ability to practice without limitations suggests he'll be healthy enough to start in Sunday's game against the Jaguars, barring a setback. His return under center is welcome news for Raiders pass catchers Jakobi Meyers and Brock Bowers, who combined for only 94 receiving yards in Desmond Ridder's spot start during Monday's 15-9 loss to the Falcons.

Herbert (ankle) doesn't have an injury designation for Thursday's game against the Broncos.

The Chargers held a walk-through practice Wednesday but estimated that Herbert would have been a full participant in a more strenuous session. He was listed with ankle and thigh injuries last week, before suiting up and completing 21 of 33 passes for 195 yards, two touchdowns and one interception in a 40-17 loss to Tampa Bay. Another loss Thursday night would make the Chargers highly unlikely to enter the AFC playoffs as anything better than the No. 7 seed, while a win would keep them in the running for the fifth or sixth seed.