Seattle worked out Sims (undisclosed) on Tuesday, Aaron Wilson of KPRC 2 Houston reports.
Sims was waived by the Dolphins with an injury settlement following their regular-season opener, and he now seems to be back in game shape after Week 7. With 2025 second-rounder Elijah Arroyo (shoulder) likely out for the rest of the season, it makes some sense that the Seahawks are now exploring depth options at tight end.