NFL Network Insider Ian Rapoport reported that Long could be placed on injured reserve and designated to return.
Rookie James Daniels could be in line to replace the 6-foot-6, 316-pound Long, who has missed 14 games over the two previous seasons due to serious ankle, shoulder, neck and elbow surgeries.
Long sustained the injury on Sunday after teammate Dion Sims rolled up on his leg at the end of a play. The 29-year-old Long was helped off the field and later was sporting a walking boot on the foot and using crutches to move around the locker room.
In 2016, Long suffered a severe right ankle injury when fullback Paul Lasike rolled up on his leg. Long had extensive surgery, and then had more surgery for a labrum injury and also for a hand injury.
Green was seen wearing a protective walking boot on his right foot at the Bengals practice facility on Tuesday, and the newspaper said he was not "out of the woods" because there was swelling in the foot after he was injured late in Sunday's game against the Tampa Bay Buccaneers.
Green played 62 of the Bengals' offensive 66 snaps against the Buccaneers and made five catches for 76 and a touchdown. For the season, he has 45 catches for 687 yards and six touchdowns.
With the score tied, 34-34, in the final minute against Tampa Bay, quarterback Andy Dalton led the Bengals down the field to set up Randy Bullock's game-winning 44-yard field goal. Dalton hit Green twice on the game-winning drive, including an 11-yard pass play that put Cincinnati in position for the winning kick, but that was when he sustained the injury.
--Miami Dolphins head coach Adam Gase said on Wednesday that quarterback Ryan Tannehill will miss his fourth straight game on Sunday against the New York Jets because of a lingering right shoulder injury.
The Dolphins (4-4), who started the season 3-0, are 1-2 with Brock Osweiler at quarterback, losing to the Detroit Lions and Houston Texans in their last two games and dropping four of their last five.
Tannehill has been unable to throw a football since sustaining the injury, but it was reported last week that he has been throwing a tennis ball in an effort to regain the strength in his shoulder.
--New Orleans Saints rookie defensive end Marcus Davenport is expected to be sidelined for a month because of a toe injury.
NFL Network Insider Ian Rapoport reported the news on the 22-year-old Davenport, who was spotted in a walking boot after recording two sacks in Sunday's 30-20 win over the Minnesota Vikings.
The Saints traded the 27th and 147th overall picks in the 2018 NFL Draft along with next year's first-round selection in order to take Davenport with the 14th overall pick.
Davenport has 11 tackles, four sacks and one forced fumble this season for the Saints (6-1), who host the Los Angeles Rams (8-0) on Sunday (4:25 p.m. ET).
Barkley is expected to serve as Nathan Peterman's backup should fellow quarterback Derek Anderson be unable to start for the Bills (2-6) against the visiting Chicago Bears (4-3) on Sunday.
Anderson sustained a concussion during the latter stages of Monday's 25-6 setback versus the New England Patriots. The 35-year-old quarterback was signed three weeks ago with rookie Josh Allen -- the seventh overall pick of the 2018 NFL Draft -- nursing an elbow injury.
Barkley is joining his sixth team since being selected by the Philadelphia Eagles in the fourth round of the 2013 draft. The 28-year-old spent the preseason with the Cincinnati Bengals before sustaining a left knee injury in the finale.
Terms of the deal for Jones were not disclosed by the Jaguars (3-5), who have a bye following Sunday's 24-18 setback to the Philadelphia Eagles at Wembley Stadium in London. The loss was Jacksonville's fourth in a row.
Jones, who recently worked out for the Jaguars, completed 108 of 169 passes for 1,310 yards with eight touchdowns and seven interceptions during his five seasons with the Pittsburgh Steelers. The Jaguars, who return from their bye to face the Indianapolis Colts, play the Steelers in Week 11.
The 29-year-old Jones was released in September by the Steelers, who elected to keep Joshua Dobbs as Ben Roethlisberger's backup.
--Detroit Lions coach Matt Patricia told reporters that the team was taking a big picture view when it traded wide receiver Golden Tate to the Philadelphia Eagles.
The Eagles sent a third-round pick on Tuesday to the Lions (3-4), who are just one game behind the first-place Chicago Bears (4-3) in the NFC North. Patricia defended the move, noting other times that teams were able to continue to win despite trading away established players.
Tate led the team in receptions (44) and receiving yards (517) while also scoring three touchdowns this season. Fellow wideouts Kenny Golladay has 30 catches for 477 yards and three scores while Marvin Jones Jr. had 26 receptions for 387 yards and a club-best five touchdowns.
Mayfield was asked about Oklahoma's Lincoln Riley on Wednesday, two days removed from the Browns firing head coach Hue Jackson and offensive coordinator Todd Haley and replacing them with Gregg Williams and Freddie Kitchens, respectively.
Riley coached Mayfield for three seasons in college: two as offensive coordinator/quarterbacks coach and one as head coach.
--Quarterback Ben Roethlisberger and linebacker Ryan Shazier were among the Steelers players and staff members in attendance at the joint funeral of brothers Cecil and David Rosenthal, who were killed in the Tree of Life Synagogue shooting in a Pittsburgh neighborhood last weekend.
Michele Rosenthal, the sister of the two victims, previously was the Steelers' community relations manager.
More than 1,000 people poured into Rodef Shalom to mourn the two intellectually disabled brothers who were killed in the shooting. Eleven people died and several others were injured during the attack in the neighborhood of Squirrel Hill, which is a few miles from the Steelers' practice facility.
The Steelers (4-2-1) held a moment of silence before Sunday's 33-18 victory over the Cleveland Browns. Players and fans at Heinz Field bowed their heads and stood in silence for approximately seven seconds before the game. The scoreboards also went dark during the moment of silence.
Peterson, who received the honor for the ninth time in his career, rushed for a season-high 149 yards on 26 carries in Sunday's 20-13 win over the New York Giants. The 33-year-old highlighted the performance with his second touchdown of the day -- a 64-yard score -- late in the fourth quarter to seal the victory.
Pittsburgh Steelers running back James Conner was named AFC Offensive Player of the Week after collecting 212 total yards off 30 touches in Sunday's 33-18 triumph over the Cleveland Browns. Conner also had a pair of second-half touchdowns.
New Orleans Saints cornerback P.J. Williams was named NFC Defensive Player of the Week after returning an interception 45 yards for a touchdown in Sunday night's 30-20 victory over the Minnesota Vikings.
Indianapolis Colts kicker Adam Vinatieri was named AFC Special Teams Player of the Week after becoming the NFL's all-time leading scorer in Sunday's 42-28 win over the Oakland Raiders, surpassing Hall of Fame kicker Morten Andersen (2,544).
Seattle Seahawks rookie punter Michael Dickson was named NFC Special Teams Player of the Week after rushing for a first down to seal Sunday's 28-14 victory over the Detroit Lions.
--Ha Ha Clinton-Dix, who was acquired by the Washington Redskins on Tuesday from the Green Bay Packers, said on Wednesday that he will be ready to start on Sunday against the Atlanta Falcons alongside safety D.J. Swearinger.
Several media reports analyzing the deal claimed it will give the Redskins the best safety tandem in the NFL.
Clinton-Dix will replace second-year safety Montae Nicholson, who is out because of an injury.