The Falcons placed Landman (calf) on injured reserve Monday, Marc Raimondi of ESPN.com reports.
Landman was set to miss Atlanta's Week 2 matchup with the Eagles after missing the entire week of practice with a calf issue, and he's now landed on IR. The Colorado product logged 110 total tackles, including 2.0 sacks, while appearing in 16 regular-season games with the Falcons in 2023. Expect Atlanta to turn to Troy Andersen alongside Kaden Elliss as part of the team's top inside-linebacker duo, with Landman set to miss at least the next four games.