Rest didn't help Khalil Mack's foot injury. The star pass rusher is undergoing season-ending foot surgery and has been placed on injured reserve.

NFL.com's Jelani Scott breaks down four things to watch for when the Pittsburgh Steelers host the Chicago Bears on Monday night.

The Bears intend to rest Khalil Mack on Sunday against the 49ers, and there are ongoing discussions about whether to place him on IR because of his foot injury, per Ian Rapoport and Mike Garafolo.

Titans WR A.J. Brown (hamstring) exited in the first quarter against the Colts. He was eventually ruled out for the game. Here are the injuries and news we're monitoring around the NFL on this Week 3 Sunday.

It's that time of year again, when NFL players cast their votes to identify the best in the league heading into the 2021 NFL season.

It's that time of year again, when NFL players cast their votes to identify the best in the league heading into the 2021 NFL season. 

Editors Ali Bhanpuri and Tom Blair assess the 30 best players over the age of 30 heading into the 2021 NFL season. How high did Tom Brady climb from last year's list? Is anyone above Aaron Rodgers?

As the 2021 NFL preseason gets underway, Dan Hanzus re-assesses all 32 teams in a fresh installment of Power Rankings. What has Washington rising? Why are the Saints down?

Following an 8-8 showing last season, Bears pass rusher Khalil Mack realizes more than ever "you cannot waste time" in the NFL and "time is of the essence" for his Chicago squad.

In honor of the Summer Olympics in Tokyo, we're highlighting the best of the best across the NFL. Who are the top three pass rushers heading into the 2021 season? Check out the gold, silver and bronze medalists at the position, according to the voting of our 25-analyst panel.

Will Justin Fields force the Bears to start him? Will Aaron Rodgers force the Packers to trade him? And who DOESN'T have cornerback questions in the NFC North? Tom Blair provides a training camp preview for the division, with position battles and key players to watch across all four rosters.

Will rookies Justin Fields and Teven Jenkins spark a breakthrough by the Bears? Can the Vikings overcome some major question marks? Gregg Rosenthal projects the starters for every team in the NFC North.

Jon Gruden has yet to record a winning season in his second stint as Raiders coach. Jim Trotter examines an organizational approach under Gruden that has led to plenty of questionable moves.

What will New York Giants GM Dave Gettleman do with the No. 11 overall pick in the 2021 NFL Draft? Chris McNeill takes a closer look at five selections that figure to be pivotal in Round 1. 

NFL free agency is off and running, with a flurry of activity to open up the new league year. So far, which teams have made the biggest moves -- and non-moves? Marc Sessler provides his unique analysis.

With the NFL's salary cap dropping due to the COVID-19 pandemic, free agency feels more unpredictable than ever before. Not to fret! Gregg Rosenthal provides a big-picture guide explaining which teams could be spenders, which players might be traded and much, much more.

Bucs right tackle Tristan Wirfs was presented with an imposing first NFL job: help keep Tom Brady upright during a Super Bowl push. James Palmer spotlights a rookie who stood up under pressure.

Bears linebacker Khalil Mack plans to use all the disrespect they have been receiving to their advantage against the Saints on Sunday.

Chicago Bears linebacker Khalil Mack and wideout Allen Robinson are both listed as questionable for Sunday vs. the Jaguars. 

Patrick Mahomes and Aaron Rodgers highlight the rosters for the 2021 Pro Bowl. Check out the complete AFC and NFC rosters.

Dallas Cowboys star running back Ezekiel Elliott (calf bruise) is expected to play against the Bengals in Cincinnati today, according to NFL Network Insider Ian Rapoport.

The Bears allowed Aaron Rodgers to do whatever he wanted on Sunday. Chicago's vaunted defense didn't record a single QB hit on the Packers' signal-caller, and Khalil Mack didn't earn a single pressure.

Will the Broncos end the Saints' seven-game win streak? Can the Patriots slow down Arizona's electric offense? NFL Network analysts make bold predictions for Week 12 of the 2020 NFL season.

Nick Shook eyes the 10 most disruptive defenders in the NFL. Which game-wrecker stands supreme: Myles Garrett or T.J. Watt?

Minnesota Vikings running back Dalvin Cook -- listed as questionable with a groin injury -- is expected to play against the Green Bay Packers, according to Tom Pelissero.

NFL Insider Ian Rapoport reports Chicago Bears linebacker Khalil Mack will be out for remainder of season due to season-ending foot surgery.

NFL Network's Ian Rapoport reports Injured reserve 'a possibility' for Chicago Bears linebacker Khalil Mack at this point.

Chicago Bears linebacker Khalil Mack sacks Green Bay Packers quarterback Aaron Rodgers on third down.

Chicago Bears outside linebacker Khalil Mack denies the Las Vegas Raiders' two-point try with his second sack of the game.

Lookin' for revenge! Chicago Bears outside linebacker Khalil Mack burns his former Las Vegas Raiders team with a dominant sack on Raiders quarterback Derek Carr.

Chicago Bears outside linebacker Khalil Mack stuffs his former Las Vegas Raiders team's fourth-down plunge.

Chicago Bears linebacker Khalil Mack registers a sack against Detroit Lions quarterback Jared Goff.

Chicago Bears defensive lineman Robert Quinn forces a fumble against former teammate Lions quarterback Jared Goff and linebacker Khalil Mack scoops it up for a red-zone turnover.

Chicago Bears linebacker Khalil Mack sacks Cleveland Browns quarterback Baker Mayfield for a turnover on downs on fourth down.

Check out the best plays from the Chicago Bears defensive unit from Week 2 against the Cincinnati Bengals.

Chicago Bears linebacker Khalil Mack sacks Cincinnati Bengals quarterback Joe Burrow for his first sack of the 2021 NFL season.

Chicago Bears linebacker Khalil Mack has been voted as the No. 23 player in the NFL on the "Top 100 Players of 2021" rankings.

NFL Network's LaDainian Tomlinson shares his top five edge rushers entering the 2021 NFL season.

The "Good Morning Football" crew highlights the most intriguing players facing their former teams in 2021.

NFL Network's Tom Pelissero explains which players will qualify for extra money with the new 17-game regular season.

Watch the highlights from the Super Wild Card Weekend matchup between the Chicago Bears and New Orleans Saints.

Pro Football Focus previews the matchup between the No. 7 seed Chicago Bears (8-8) and the No. 2 seed New Orleans Saints (12-4) on Super Wild Card Weekend in the Mercedes-Benz Superdome for the 2020 NFL season.

Watch the highlights of the Week 17 matchup between the Green Bay Packers and the Chicago Bears.

Chicago Bears linebacker Khalil Mack sacks Green Bay Packers quarterback Aaron Rodgers.

Every player with a Pro Football Focus grade of at least 90 in Week 14

Watch the top plays of Week 14 during the NFL 2020 season.

Watch the top turnovers of Week 14 during the NFL 2020 season.

Watch all the highlights from the week 14 matchup between the Houston Texans and the Chicago Bears.

Chicago Bears ambush Houston Texans quarterback Deshaun Watson for back-to-back sacks to score safety.

Chicago Bears linebacker Khalil Mack RIPS ball from Duke Johnson for Bears turnover