The Cowboys reverted Fehoko (undisclosed) to IR on Wednesday, per the NFL's transaction log.
It's not clear what type of issue Fehoko is currently dealing with, but he spent over a month last season on IR due to a knee injury. The defensive lineman was waived/injured by Dallas on Monday and subsequently cleared waivers. If he doesn't reach an injury settlement with the team, Fehoko will spend all of the 2024 campaign on injured reserve.