Below are 10 quick-hitting insights on outside linebacker Khalil Mack, whom the Chargers officially acquired via trade on Wednesday from the Chicago Bears:
1) Mack is a six-time Pro Bowler, three-time AP First-Team All-Pro and 2016 AP Defensive Player of the Year. Since his rookie season in 2014, only four current players have more sacks than his 78.5.
2) Mack will be paired with Joey Bosa to form perhaps the best pass-rushing duo in the NFL. Since 2016, only five current players have more sacks than Mack (57.5) and Bosa (58.0).
3) Brandon Staley was the Chicago Bears' outside linebackers coach in 2018, overseeing a season where Mack was second in DPOY voting: 47 total tackles, 12.5 sacks, 18 quarterback hits, six forced fumbles and an interception returned for a touchdown.
4) Per Pro Football Focus, "Mack was the NFL's highest-graded edge defender in 2020 before his injury-hindered 2021 campaign (just 315 snaps played)." His wins above replacement (WAR) among edge rushers since 2016 is a league-best 2.93. Bosa is fourth at 2.45.
5) Mack rejoins with AFC West, where he spent his first four NFL seasons after being selected by the Oakland Raiders with the fifth overall pick in 2014. He never missed a game with the Raiders, finishing his time in Oakland with 40.5 sacks, 84 QB hits and nine forced fumbles.
6) Thirteen players from the University of Buffalo have been selected in the NFL Draft. Mack is the only first-rounder. He totaled 327 tackles and 28.5 sacks for the Bulls.
7) The team that Mack has sacked the most? The Broncos. He has 11.5 career sacks against Denver, including a five-sack performance on Dec. 13, 2015.
Browse through photos of the Chargers newest edge weapon, three-time All-Pro, six-time Pro Bowler & 2016 Defensive Player of the Year, Khalil Mack
Chicago Bears linebacker Khalil Mack (52) sacks Las Vegas Raiders quarterback Derek Carr (4) during an NFL game, Sunday, Oct. 10, 2021, in Las Vegas. The Bears defeated the Raiders 20-9. (Kevin Terrell via AP)
FILE - In this Sept. 9, 2018, file photo, Chicago Bears' Khalil Mack intercepts a pass and returns it for a touchdown during the first half of an NFL football game against the Green Bay Packers, in Green Bay, Wis. The beleaguered Arizona Cardinals offense must deal with Khalil Mack, who has two strip sacks and returned an interception for a touchdown in his two games since joining the Bears.(AP Photo/Jeffrey Phelps, File)
Chicago Bears linebacker Khalil Mack (52) celebrates during a week 2 NFL football game against the Seattle Seahawks on Monday, Sept. 17, 2018 in Chicago. Chicago won 24-17. (Aaron M. Sprecher via AP)
Chicago Bears linebacker Khalil Mack (52) smiles during an NFL football game against the Tampa Bay Buccaneers on Sunday, Sept. 30, 2018 in Chicago. (Greg Trott via AP)
Chicago Bears outside linebacker Khalil Mack (52) celebrates with fans after an NFL football game against the Minnesota Vikings Sunday, Nov. 18, 2018, in Chicago. The Bears won 25-20. (AP Photo/Nam Y. Huh)
Chicago Bears outside linebacker Khalil Mack (52) celebrates after sacking Minnesota Vikings quarterback Kirk Cousins (8) during the second half of an NFL football game Sunday, Nov. 18, 2018, in Chicago. (AP Photo/David Banks)
New York Giants quarterback Eli Manning (10) is sacked by Chicago Bears outside linebacker Khalil Mack (52) during the second half of an NFL football game, Sunday, Dec. 2, 2018, in East Rutherford, N.J. (AP Photo/Seth Wenig)
Chicago Bears linebacker Khalil Mack (52) sacks Green Bay Packers quarterback Aaron Rodgers (12) during the first half of an NFL football game Sunday, Dec. 16, 2018, in Chicago. (AP Photo/Nam Y. Huh)
Chicago Bears' Leonard Floyd is congratulated by Khalil Mack after sacking Green Bay Packers' Aaron Rodgers during the first half of an NFL football game Thursday, Sept. 5, 2019, in Chicago. (AP Photo/David Banks)
Chicago Bears outside linebacker Khalil Mack (52) celebrates his sack against the Denver Broncos during the first half of an NFL football game, Sunday, Sept. 15, 2019, in Denver. (AP Photo/David Zalubowski)
Chicago Bears outside linebacker Khalil Mack (52) celebrates after a sack during an NFL football game against the Washington Redskins, Monday, Sept. 23, 2019, in Landover, Md. The Bears defeated the Redskins, 31-15. (Ryan Kang via AP)
Chicago Bears outside linebacker Khalil Mack (52) hits Washington Redskins quarterback Case Keenum (8) to cause a fumble during the first half of an NFL football game Monday, Sept. 23, 2019, in Landover, Md. (AP Photo/Julio Cortez)
Chicago Bears outside linebacker Khalil Mack (52) celebrates his hit to cause a fumble during the first half of an NFL football game against the Washington Redskins, Monday, Sept. 23, 2019, in Landover, Md. (AP Photo/Patrick Semansky)
Chicago Bears outside linebacker Khalil Mack (52) celebrates with fans after an NFL football game against the Washington Redskins, Monday, Sept. 23, 2019, in Landover, Md. The Bears won 31-15. (AP Photo/Patrick Semansky)
Minnesota Vikings quarterback Kirk Cousins (8) fumbles the ball as he is sacked for a 7-yard loss by Chicago Bears outside linebacker Khalil Mack, right, during the second half of an NFL football game Sunday, Sept. 29, 2019, in Chicago. The Bears recovered the fumble. (AP Photo/Matt Marton)
Chicago Bears outside linebacker Khalil Mack (52) celebrates during an NFL football game against the Los Angeles Chargers, Sunday, Oct. 27, 2019, in Chicago. The Chargers defeated the Bears, 17-16. (Ryan Kang via AP)
Chicago Bears outside linebacker Khalil Mack (52) sacks Kansas City Chiefs quarterback Patrick Mahomes (15) in the first half of an NFL football game in Chicago, Sunday, Dec. 22, 2019. (AP Photo/Charles Rex Arbogast)
CHICAGO, ILLINOIS - OCTOBER 08: Chicago Bears Lineback Khalil Mack #52 sacks Tampa Bay Buccaneers quaterback Tom Brady #12 at Soldier Field on October 08, 2020 in Chicago, Illinois. (Photo by Te Bates via AP)
CHICAGO, ILLINOIS - OCTOBER 08: Chicago Bears Lineback Khalil Mack #52 celebrates after his second sacked against Tampa Bay Buccaneers quaterback Tom Brady #12 at Soldier Field on October 08, 2020 in Chicago, Illinois. (Photo by Te Bates via AP)
Chicago Bears outside linebacker Khalil Mack (52) pressures Los Angeles Rams quarterback Jared Goff (16) and causes a fumble during an NFL football game, Monday, Oct. 26, 2020, in Inglewood, Calif. (Ben Liebenberg via AP)
Chicago Bears outside linebacker Khalil Mack (52) celebrates during an NFL football game against the Los Angeles Rams, Monday, Oct. 26, 2020, in Inglewood, Calif. The Rams defeated the Bears, 24-10. (Ryan Kang via AP)
![Chicago Bears outside linebacker Khalil Mack (52) sacks Detroit Lions quarterback Matthew Stafford (9)] in the first half of an NFL football game in Chicago, Sunday, Dec. 6, 2020. (AP Photo/Nam Y. Huh)](https://static.clubs.nfl.com/image/private/t_new_photo_album_2x/t_lazy/f_auto/chargers/peylx4veidusdxk4ithh.jpg)
Chicago Bears outside linebacker Khalil Mack (52) sacks Detroit Lions quarterback Matthew Stafford (9)] in the first half of an NFL football game in Chicago, Sunday, Dec. 6, 2020. (AP Photo/Nam Y. Huh)
Chicago Bears outside linebacker Khalil Mack (52) celebrates a fumble recovery during an NFL football game against the Houston Texans, Sunday, Dec. 13, 2020 in Chicago. (Todd Rosenberg via AP)
Chicago Bears outside linebacker Khalil Mack (52) celebrates during an NFL football game against the Los Angeles Rams, Sunday, Sept. 12, 2021, in Inglewood, Calif. Los Angeles Rams won 34-14. (Aaron M. Sprecher via AP)
Chicago Bears outside linebacker Khalil Mack, second from left, sacks Cleveland Browns quarterback Baker Mayfield during the first half of an NFL football game, Sunday, Sept. 26, 2021, in Cleveland. (AP Photo/David Dermer)
Chicago Bears outside linebacker Khalil Mack (52) runs with the ball after fumble recovery against the Detroit Lions during the first half of an NFL football game, Sunday, Oct. 3, 2021, in Chicago. (AP Photo/Kamil Krzaczynski)
Detroit Lions quarterback Jared Goff (16) tries to tackle Chicago Bears outside linebacker Khalil Mack after Mack's fumble recovery during the first half of an NFL football game Sunday, Oct. 3, 2021, in Chicago. (AP Photo/Nam Y. Huh)
Chicago Bears outside linebacker Khalil Mack (52) smiles as he walks off the field after an NFL football game against the Detroit Lions, Sunday, Oct. 3, 2021, in Chicago. (AP Photo/Kamil Krzaczynski)
Chicago Bears outside linebacker Khalil Mack (52) celebrates after sacking Las Vegas Raiders quarterback Derek Carr (4) during the first half of an NFL football game, Sunday, Oct. 10, 2021, in Las Vegas. (AP Photo/Rick Scuteri)
Chicago Bears outside linebacker Khalil Mack (52) sacks Las Vegas Raiders quarterback Derek Carr (4) during the first half of an NFL football game, Sunday, Oct. 10, 2021, in Las Vegas. (AP Photo/David Becker)
8) Mack and Rams defensive tackle Aaron Donald (98 sacks) were both selected in the first round of the 2014 NFL Draft. Together they have 174.5 combined sacks. Only three other players from the class have 40 sacks or more (Dallas' DeMarcus Lawrence, 48.5; Cleveland's Jadeveon Clowney, 41; and San Francisco's Dee Ford, 40).
9) Including Mack and Bosa, here are some of the other pass rushers under contract in the AFC West: Maxx Crosby and Chandler Jones, Las Vegas; Bradley Chubb and Randy Gregory, Denver; and Frank Clark and defensive tackle Chris Jones, Kansas City.
10) Los Angeles has four defensive starters with a combined 13 Pro Bowl appearances (Mack, 6; Bosa, 4; safety Derwin James Jr., 2; cornerback J.C. Jackson, 1).
*Stats and information courtesy of Pro Football Reference and Chargers Communications unless otherwise noted.
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