Seahawks sign one former UDFA linebacker as they waive/injured another

PASADENA, CA - SEPTEMBER 14: UCLA linebacker Joseph Vaughn (30) celebrates after a play in the second half of a college football game between the Indiana Hoosiers and the UCLA Bruins on September 14, 2024, at the Rose Bowl in Pasadena, California. (Photo by Tony Ding/Icon Sportswire via Getty Images) | Icon Sportswire via Getty Images

The Seattle Seahawks are the defending world champions, having defeated the New England Patriots 29-13 in Super Bowl LX back in February to lay claim to the second Lombardi Trophy in franchise history.

Now, with the calendar having turned to August and training camps across the league underway, the Seahawks are building towards defending that title.

Saturday the team inked former a former undrafted free agent linebacker to the roster.

Today's @Seahawks roster moves: https://t.co/vPgDQz20Ks

- Seahawks PR (@seahawksPR) August 1, 2026

Joseph Vaughn spent the first five years of his college career in the Ivy League at Yale before transferring to UCLA for the 2024 season. At UCLA Vaughn logged just seven defensive snaps that season, but was a key member of the special teams for the Bruins, seeing 182 snaps of action on both the punt and kick coverage and return units.

Vaughn signed with the Indianapolis Colts after going undrafted in 2025, but failed to make the roster out of training camp. He then signed a future contract after the season, but was let go during the offseason.

#8 Joseph Vaughn is a LB prospect in the 2025 draft class. He scored a 9.49 RAS out of a possible 10.00. This ranked 164 out of 3204 LB from 1987 to 2025.https://t.co/wfGLRyo958pic.twitter.com/diWEu9fRJG

- RAS.football (@MathBomb) April 23, 2025

To make room for Vaughn on the roster the Seahawks waived/injured Ja'Markis Weston. Should Weston clear waivers he will revert to injured reserve.