Week 3 of the NFL preseason offered a depth-packed snapshot with notable injury news and backup QB showings across the league. Derrick Harmon’s non-contact knee injury for PIT creates immediate questions about the Steelers’ defensive front, while Clayton Tune’s mobility and a rushing TD highlighted Arizona’s backup QB evaluation. Riley Leonard and Laquon Treadwell supplied Colts intrigue, and Dresser Winn flashed depth‑chart potential for the Rams. These developments shape late‑roster bets and deeper Fantasy rosters.