Training camps are underway around the NFL, but not everyone is suiting up to start the summer. A handful of big names have recently been placed on the Physically Unable to Perform (PUP) list, indefinitely sidelining players ahead of the 2023 season.

Players on PUP count against 90-man offseason rosters during training camp, but they can be activated to practice at any point prior to the season. If they remain on PUP after the finalization of 53-man regular-season rosters, however, they are required to miss at least the first four games of the season before resuming practice and/or joining the official lineup.

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Here's a look at some of the most notable names on PUP to open 2023 training camp:

Arizona Cardinals

  • QB Kyler Murray (knee): The former No. 1 overall pick suffered a torn ACL last December, jeopardizing his availability for the start of the 2023 season. Arizona isn't expected to have Murray on the field for the entirety of the summer, with veteran backup Colt McCoy penciled in as the new regime's placeholder under center.
  • TE Zach Ertz (knee): One of Murray's most reliable pass targets before suffering a season-ending ACL and MCL injury last November, the ex-Eagles standout will be temporarily replaced by Trey McBride.

Buffalo Bills

  • LB Von Miller (knee): Miller is returning after tearing his ACL on Thanksgiving last season. Before going down, the veteran pass rusher was putting up strong numbers, including eight sacks over the course of 11 games. 
  • LB Tyler Matakevich (undisclosed): The core special teams player signed a two-year extension with the Bills back in March and has been with the organization since 2020 after coming over from the Steelers.

Cincinnati Bengals

  • OT La'el Collins (knee): The former Cowboys starter may be out of a first-team right tackle job thanks to Jonah Williams' transition, but if he's able to complete rehab from an ACL tear, he could still make it a competition before Week 1.
  • TE Mitchell Wilcox (Undisclosed): Undrafted out of USF in 2020, Wilcox has been with the Bengals organization his entire career. He was recently re-signed to the roster, but placed on the PUP list. In five career games played, he has caught 20 passes for 155 yards and one touchdown. 

Denver Broncos

  • EDGE Baron Browning (knee): Browning underwent arthroscopic knee surgery to repair a partially torn meniscus in June, per 9News. He recorded a career-high five sacks in 14 games played last year. 

Detroit Lions

  • CB Emmanuel Moseley (knee): The former 49ers starter is one of Detroit's most prominent free-agent additions in a revamped secondary, but he's still recovering from an ACL tear that ended his 2022 campaign.

Houston Texans

  • OT Charlie Heck (undisclosed): Heck is entering his fourth season with the Texans after the club drafted him in the fourth round in the 2020 NFL Draft out of North Carolina. He started in three of Houston's 17 games last season. 

Indianapolis Colts

  • RB Jonathan Taylor (ankle): Taylor missed six games last season due to an ankle injury and underwent surgery on his right ankle back in January. When healthy, Taylor is one of the more talented backs in the league and still was able to total over a thousand yards from scrimmage in 2022 in just 11 games played. He reportedly returned to the team Monday, but remains on PUP and still wants traded.   

Jacksonville Jaguars

  • EDGE Dawuane Smoot (Achilles): Smoot tore his Achilles late last season, but still re-signed with the Jags this summer. He recorded five sacks in 15 games played last year. 

Los Angeles Chargers

  • WR Jalen Guyton (knee): Guyton tore his ACL in Week 3 last year, and is working to get back on the practice field. He's recorded 61 catches for 1,023 yards and six touchdowns in 38 career games played for the Chargers. 
  • DL Austin Johnson (knee): Johnson suffered a fractured knee and MCL injury in Week 9 last year. 
  • DL Otito Ogbonnia (knee): A fifth-round pick out of UCLA in 2022, Ogbonnia suffered a kneecap injury last year.

Miami Dolphins

  • CB Nik Needham (Achilles): Needham is working back from a torn Achilles. The defensive back has spent all four NFL seasons with the Dolphins, and has played in 51 career games. 
  • TE Tanner Conner (undisclosed): Conner was an undrafted rookie for the Dolphins last season and appeared in 13 games for the team in 2022. While he was a wide receiver in college, the sophomore has since transitioned to tight end upon signing with Miami. 

New York Giants

  • WR Wan'Dale Robinson (knee): Robinson was a second-round pick of the Giants in 2022 and pegged to have a sizable role within the offense. However, he suffered a torn ACL in Week 11 against Lions that ended his rookie season. To add insult to injury, Robinson was enjoying a breakout performance (nine catches for 100 yards) before suffering the injury. 
  • CB Aaron Robinson (knee): New York selected Robinson in the third round of the 2021 NFL Draft. The 24-year-old was another ACL victim for the Giants as he went down after appearing in just two games.

New York Jets

  • RB Breece Hall (knee): An early-2022 candidate for Offensive Rookie of the Year, he was ultra-efficient before an ACL tear prematurely ended his debut. New York has been exploring Dalvin Cook while monitoring Hall's recovery.
  • OT Duane Brown (shoulder): The veteran offensive tackle is working back from shoulder surgery, per The Athletic.
  • CB Jarrick Bernard-Converse (undisclosed): The sixth-round pick out of LSU is a versatile prospect who could wear multiple hats in the secondary when he eventually takes the field. 

Tennessee Titans

  • CB Caleb Farley (back): Farley again ended last season on injured reserve with a back issue. The former first-round pick has played in just 12 games over two seasons. 
  • OL Dillon Radunz (knee): Radunz, a former second-round pick, suffered a torn ACL in late December last year.