Indianapolis Colts guard Quenton Nelson and Jacksonville Jaguars pass rusher Josh Allen are the latest NFL players to be placed on the reserve/COVID-19 list.

The Colts are hoping to stay in the AFC South race with a victory Saturday night at Arizona, but the loss of the 25-year-old Nelson, a three-time All-Pro, is a big blow.

The Jaguars (2-12) will be without three starters on Sunday against the New York Jets after Allen, receiver Laviska Shenault and guard Ben Bartch were placed on the reserve list on Friday. They won't make the trip to New Jersey.

Allen is unvaccinated and will be out for at least 10 days, according to current NFL protocol. He will also miss the team's January 2 game at New England.

The Jets, who have been hit hard this week by the coronavirus, activated wide receiver Jeff Smith and special teams ace Justin Hardee from the COVID-19 list, making them eligible to play against Jacksonville.

New York still have 17 players on the list who are either on the active or practice squad rosters, or injured reserve.

Jets coach Robert Saleh also remains out after testing positive earlier in the week. He needs two negative tests to be cleared to coach the game. If not, tight ends coach Ron Middleton will handle Saleh's duties.

Buffalo placed Gabriel Davis on their reserve/COVID-19 list, leaving the Bills without another key receiving threat for Sunday's big game against the Patriots.

Davis joined slot receiver Cole Beasley on Buffalo's list. Davis had two touchdowns and a season-high 85 yards receiving in last weekend's 31-14 win over Carolina, filling in for Emmanuel Sanders after he was sidelined by a knee injury.

Sanders is in position to return after he practised fully on Thursday.

Buffalo (8-6) are right behind AFC East-leading New England (9-5), but has the tiebreaking edge to clinch the second division title by winning their final three games of the season.

Offensive lineman Cody Ford was also added to the Bills' reserve/COVID-19 list on Friday while practice squad offensive lineman Bobby Hart was cleared from the list.

Ford was starting in place of Jon Feliciano, whose status is uncertain after he was placed on the list on Sunday.

Tennessee has placed an offensive lineman on the COVID-19 list three straight days, with left tackle Taylor Lewan joining left guard Rodger Saffold and reserve lineman Kendall Lamm on the list.

But the Titans activated wide receiver Dez Fitzpatrick and defensive back Jamal Carter off the COVID-19 list.

The Chiefs still have tight end Travis Kelce, wide receiver Tyreek Hill, right tackle Lucas Niang, linebacker Nick Bolton, offensive lineman Kyle Long and safety Armani Watts on the reserve list.

The Cleveland Browns activated Baker Mayfield, fellow quarterback Case Keenum, wide receiver Jarvis Landry, cornerback AJ Green and defensive end Ifeadi Odengibo for Saturday's game when the Browns (7-7) visit the Green Bay Packers (11-3).

Mayfield and Keenum were both unavailable for Monday night's 16-14 loss to the Las Vegas Raiders.