Barnes (knee) told reporters Wednesday that he's not ruling out a return this season, Dave Birkett of the Detroit Free Press reports.
Head coach Dan Campbell said Monday that the team will be fortunate to get Barnes (knee) back at any point this year, Colton Pouncy of The Athletic reports.
The Lions placed Barnes (knee) on injured reserve Tuesday.
Head coach Dan Campbell told reporters Monday that Barnes (knee) will miss "a significant amount of time," Tim Twentyman of the Lions' official site reports.
The Lions downgraded Barnes (knee) to out for the remainder of Sunday's game against the Cardinals.
Barnes exited Sunday's game against the Cardinals with a knee injury and is questionable to return, Eric Woodyard of ESPN.com reports.
Barnes (knee) registered 81 tackles, 1.0 sacks and one forced fumble over 16 regular-season games in 2023.
Barnes (knee) is questionable to return to Sunday's NFC Championship Game against the 49ers.
Barnes recorded five tackles (three solo) in Saturday's 20-19 loss at Dallas.
Barnes (shoulder) was listed as a full participant on the Lions' practice estimate Tuesday, Eric Woodyard of ESPN.com reports.