What happened: The undrafted rookie joins the roster during training camp after a brief NFL stint in June. He last played collegiately in 2025.
Why it matters: The move adds competition for a depth receiving role before roster cuts. His punt-return experience provides another route into the lineup.
By the numbers: Duplessis caught 60 passes for 824 yards and five touchdowns in 13 games in 2025, averaging 5.0 catches and 63.4 yards per game. He also returned three punts for 73 yards and a touchdown.
What to watch: Watch how Seattle divides his training-camp work between receiver and special teams.