Davis warmed up, but was unable to go. Rookie Vance McDonald will start at tight end for San Francisco.
Rice is arguing that the Collective Bargaining Agreement allows just one penalty per infraction. The league suspended the former Raven two games after reviewing the domestic-violence incident, but after a second video of the same incident was brought to light in the public forum, Rice was cut by the team and suspended indefinitely by the league.
Rice's grievance against the league is set for Nov. 5 and 6, while his grievance against the Ravens doesn't have a scheduled date for resolution. He'll look to seek the salary he would have earned if he had been reinstated in Week 3 in his grievance against the Ravens.
Niklas has missed the last two weeks after suffering an ankle sprain. He has one reception for 16 yards on the season.
Branch was released by the Bills after a DUI arrest in August. The Patriots reportedly are going to be without defensive end Chandler Jones (hip) for about a month, leaving a need to add depth on the defensive line.
Jones recorded four tackles and a sack in the team's Week 7 win over the Jets last Thursday after entering the contest listed as probable. He has posted 4.5 sacks over six games this season.
Kuechly was ejected from Sunday's game after the incident, which the linebacker contends happened because he wasn't aware it was an official pulling him from behind after a play. Panthers coach Ron Rivera disagreed with the decision to eject Kuechly and predicted the linebacker wouldn't face a fine.
"Mentally, I feel like I'm in the game plan. Mentally, I feel prepared for the games. It's just ... I don't know what it is," he told the website. "I'm not finishing plays. I'm not doing what I'm supposed to do."
White, who turns 33 next month, vowed to fix the problem. And he said injuries are not a factor.
"It's frustrating me," he said. "I'll figure it out, though. I will figure it out."