Baltimore Ravens linebacker Ray Lewis has a complete triceps tear and is out for the season, coach John Harbaugh announced to reporters on Monday.
Lewis sat out the final few drives of Sunday's game 31-29 victory over the Dallas Cowboys.
Lewis also missed four games last year with turf toe, but linebacker defensive end Terrell Suggs stepped into his place as the defensive leader.
This year is different because the Ravens' defense is hurting all over. Suggs has not yet returned from a hamstring injury and it was announced Monday that cornerback Lardarius Webb is out for the year with an ACL injury. Also, defensive lineman Haloti Ngata has battled a hamstring injury. He briefly left Sunday's game with an undisclosed injury but returned.
Lewis, 37, has been facing questions about his future as observers have speculated that he has slowed down and should be taken out of games on obvious passing situations.
Lewis has been selected to the Pro Bowl 13 times, has 41.5 sacks, 31 interceptions and leads all current active players with 226 NFL starts.
---Baltimore Ravens cornerback Lardarius Webb is out for the season after tearing the anterior cruciate ligament in his left knee in Sunday's victory over the Dallas Cowboys.
Webb has an MRI on Monday to confirm what coach John Harbaugh and the Ravens feared.
Webb, who typically is assigned to the opponent's top receiver, grabbed at the base of his left knee immediately when he went down. He couldn't put weight on his left leg and was taken to the locker room with the assistance of trainers.
The Ravens signed Webb to a $50 million contract extension in the offseason after he intercepted eight passes, including three in the playoffs.
---The Buffalo Bills re-signed veteran defensive end Shawne Merriman, who was released on Aug. 20 and remained a free agent until he was called back to New York by general manager Buddy Nix.
Merriman has battled an assortment of injuries limiting him to 23 games in the past five seasons. He has five sacks in that span and lacked the explosion to fire off the line of scrimmage that made him a terror off the edge in the San Diego Chargers' 3-4 scheme.
---Dallas Cowboys running back DeMarco Murray has been ruled out for this week because of a foot injury, ESPN Dallas reported Monday.
The Cowboys had feared he may have sustained ligament damage and would be out for the year, but X-rays taken after Sunday's loss to the Baltimore Ravens were negative. Murray was scheduled to have an MRI Monday morning but the results are not yet known.
---Cleveland Browns running back Trent Richardson is considered day-to-day with a rib injury, ESPN.com reported Monday.
Richardson was hurt in the first quarter of Sunday's 34-24 win over the Cincinnati Bengals. He had 14 carries for 37 yards and spent most of the second half on the bench. The injury occurred when he took a helmet to his side.
---The Detroit Lions had no new news regarding the status of running back Jahvid Best, who has not played in a calendar year because of concussion issues.
Best had more post-concussion tests last week and a decision was scheduled to be made on Monday. Instead, coach Jim Schwartz said was not aware of the test results.
---New Orleans Saints linebacker Jonathan Vilma told a TV station in New Orleans that he will come off the physically unable to perform list and will play this Sunday against the Tampa Bay Buccaneers.
Vilma, who has been recovering from a knee injury, is one of four players who appealed their suspensions related to the "bounty" scandal.
The players can continue to play while they await a decision on their appeals, which is expected to take place on Oct. 23.
---Before New York Jets All-Pro cornerback Darrelle Revis can hit the open market, he's headed for the operating table Tuesday to have the torn ligament in his left knee repaired by New York Giants team physician Russell Warren.
"It's been hard," Revis said Monday. "Because now you're looking outside in, instead of inside out.
"I will want to go out there with this ACL tear, but I can't. It's a setback for me."
---Pittsburgh Steelers running back Rashard Mendenhall, who has an Achilles tendon injury, has a good shot to play this Sunday, according to CBS Sports.
Mendenhall sustained the injury during Thursday night's loss against the Tennessee Titans. NFL.com had reported the injury as minor.
---Tight end Brody Eldridge signed with the Chicago Bears.
The third-year player was assigned to the St. Louis Rams on waivers from the Indianapolis Colts in May, but was suspended for the first four games of the 2012 regular season for violating the NFL's policy on performance enhancing substances. His suspension ended Sept. 30.
---The Minnesota Vikings will play a home game at Wembley Stadium in London next September, ESPN reported Monday.
An official announcement is expected at Tuesday's NFL owners meetings in Chicago.
---Denver Broncos cornerback Tracy Porter will not play in Monday night's game against the San Diego Chargers because of an illness.
Porter did not make the trip to San Diego, according to the Denver Post. The starter was reportedly dizzy and light-headed, so the team's medical staff decided that Porter should stay home and rest.
Either cornerback Tony Carter or nickelback Chris Harris will start in place of Porter.
---The Jacksonville Jaguars signed veteran strong safety Chris Harris and released cornerback Kevin Rutland.
Harris, an 11-year veteran with 88 career starts with the Chicago Bears, Carolina Panthers and Detroit Lions, is a hard-hitting run defender but can be a liability in coverage.
---Arizona Cardinals quarterback is having an MRI Monday on his injured ribs, according to the Arizona Republic.
Kolb hurt his ribs with about 2 minutes left in regulation of Sunday's 19-16 overtime loss to the visiting Buffalo Bills.
Coach Ken Whisenhunt announced Monday that X-rays on Kolb's ribs and side came back negative but they were "pretty sore" so he is having an MRI to find out the extent of the injury.
--Eagles coach Andy Reid said defensive coordinator Juan Castillo will continue to make the defensive calls. "As I'm standing here right now," Reid said at his press conference, the Philadelphia Daily News reported.
That's hardly a ringing endorsement, suggesting things may change if the Eagles defense falters again.