Arroyo left Thursday Night Football late in the second quarter, and the Seahawks called him doubtful to return. On Monday morning, Seattle moved to sign tight end Josiah Deguara to the practice squad. Fowler tied that signing directly to Arroyo's injury, and NFL.com's Around the NFL carried both the IR expectation and the Deguara move.
The transaction itself is still pending. USA Today's Seahawks Wire posted that the team has placed Arroyo on IR, but the Seahawks had not announced the move on their official X account when this desk checked at 2:18 PM ET. The club has also not shared a diagnosis or a timeline beyond this week.
If the IR move goes through, Arroyo must sit at least four games. That stretch starts with Kansas City's visit to Seattle on Sunday night, Oct. 25, and runs through home dates with Chicago on Monday night, Nov. 2, and Arizona on Nov. 8.
The on-field effect is modest. A.J. Barner was already Seattle's lead tight end, playing 29 of the team's 30 first-half snaps in Denver, with Nick Kallerup and Eric Saubert behind him. Deguara is a former third-round pick who last played for Philadelphia. He is a depth body, not a pass-game threat.
For RSO owners, this is a roster-spot question more than a lineup one. Arroyo was a stash or TE2 in most formats, so moving him to an IR slot as soon as the transaction posts frees room without costing you a starter. If you hold him on a multi-year deal, keep him. Nothing so far points to a problem that lasts past this season.