Tyrice Knight’s knee injury and a medical issue leave Seattle’s linebacking corps thin for weeks, forcing the Seahawks to lean on Drake Thomas and D’Eryk Jackson during the preseason opener against Las Vegas. Thomas handled the bulk of the action in the middle, but his 47.2 overall Pro Football Focus grade reflected rough matchups, while rookie UDFA Jackson posted a sturdier 65.1. Both players finished with two tackles apiece as Ernest Jones sat out. Knight’s absence widens the gap behind him and will stretch Seattle’s depth through the next three tune-ups.

With three preseason games remaining against Kansas City and Green Bay, plus a Packers joint practice, Seattle will continue to evaluate its inside linebackers—Thomas, Jackson, Patrick O’Connell, and Michael Dowell—looking for a reliable rotational group. Knight could miss multiple weeks, but a return around Week 1 remains a possibility, giving Macdonald a clearer picture of where the depth chart stands as the season approaches.