Ngata announced his retirement from the NFL on Monday, Jamison Hensley of ESPN.com reports.
Ngata contributed 17 tackles, one sack, one pass breakup, and one forced fumble over 13 games in 2018.
Ngata (calf) is active for Sunday's game against the Jaguars in London.
Ngata (calf) is questionable for Sunday's game against the Jaguars, Zach Berman of The Philadelphia Inquirer reports.
Ngata (calf) is inactive for Sunday's game against the Panthers, Tim McManus of ESPN.com reports.
Ngata will start at defensive tackle for the Eagles on Thursday, Kelsey Conway of the Falcons' official site reports.
Ngata (biceps) had one assisted tackle in Thursday's preseason game against the Patriots.
Ngata (biceps) did not participate in the Eagles' offseason workout program, Zack Rosenblatt of NJ.com reports.
Ngata remains in recovery from the torn biceps that prematurely ended his 2017 season, Zach Rosenblatt of NJ Advance Media reports.
The Eagles are in line to sign Ngata, NJ.com reports.