Seth Coleman Re-Signs With Seattle Seahawks: What Are His NFL Prospects?

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Seth Coleman's period in the professional football wilderness didn't last long.
Coleman, the former Illinois outside linebacker who was waived by the NFL's Seattle Seahawks earlier this week, was re-signed by the team on Thursday ahead of its first preseason game later tonight.
We’ve signed DE Seth Coleman.
— Seattle Seahawks (@Seahawks) August 6, 2025
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After going undrafted in April, Coleman signed with Seattle in May and was immediately slotted as a defensive end in the team's 4-3 defensive scheme. Listed at 6-foot-5 and 250 pounds, Coleman may need to bulk up over time in order to better hold up against the run at his new position in the NFL, but it's a good sign that the Seahawks – who already have one of the league's more potent pass rushes – seem to believe enough in his current pass-rushing capabilities to bring Coleman back into the fold.

Seth Coleman at Illinois
After appearing in only three games in 2019, Coleman was able to redshirt his first season in Champaign – and then received an extra year due to the pandemic. He then played in all eight games, starting in four, in his first "full" season in 2020 (again, cut somewhat short by COVID).
Coleman grew as a player throughout his college career in Champaign, developing from an upfield penetrator into a more dynamic and productive all-around force by the end of 2024 – his final season.
Year | Games | Solo | Assists | Total tackles | TFL-Yards | Sacks-Yards | INTs | Passes defended | Forced fumbles | Fumble recs. |
|---|---|---|---|---|---|---|---|---|---|---|
2020 | 8 | 7 | 6 | 13 | 3.5-8 | 0 | 0 | 0 | 0 | 0 |
2021 | 10 | 13 | 9 | 22 | 3-14 | 2-12 | 0 | 2 | 1 | 1 |
2022 | 12 | 24 | 21 | 25 | 5-26 | 4.5-25 | 0 | 6 | 0 | 0 |
2023 | 12 | 37 | 13 | 50 | 9-53 | 6-43 | 0 | 4 | 0 | 0 |
2024 | 11 | 25 | 28 | 53 | 7-22 | 3-13 | 0 | 3 | 1 | 1 |
Seth Coleman in the NFL
Every undrafted free agent faces an uphill climb to build an NFL career, but Coleman has the advantage of having been developed at Illinois (a sneaky-good factory for building solid pros) and possessing the edge burst and athleticism the Seahawks covet from his position. Especially on Thursday (and in any subsequent early-preseason games), Coleman will likely be tested with reps as a situational pass rusher. If he can turn that into a longer audition and begin to prove himself in the regular season as a run stopper and in basic zone-drop coverage scenarios, Coleman will have a chance to build a lasting NFL career.
Seattle hosts Las Vegas at Lumen Field at 9 p.m. CT in both teams' 2025 NFL preseason opener. Fans can watch Raiders-Seahawks – and likely catch Coleman in action – on the NFL Network broadcast.
More From Illinois on Sports Illustrated:
The Big Question: Will Illinois Football Have a Top-15 Defense in 2025?
Illinois Football's Week 4 Matchup at Indiana Sells Out: What it Means
Illinois Football Seeking to Flip Wisconsin Class of 2026 Commit Jack Janda
ESPN Releases Top 32 College Football Playoff Contenders: Is Illinois on the List?
USA Today Coaches Poll: Where Illinois Football and 2025 Opponents Rank

Jason Langendorf has covered Illinois basketball, football and more for Illinois on SI since October 2024, and has covered Illini sports – among other subjects – for 30 years. A veteran of ESPN and Sporting News, he has published work in The Guardian, Vice, Chicago Sun-Times and many other outlets. He is currently also the U.S. editor at BoxingScene and a judge for the annual BWAA writing awards. He can be followed and reached on X and Bluesky @JasonLangendorf.
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