Richardson (undisclosed) reverted to the Jets' injured-reserve list Monday, according to the NFL's official transaction log.
The running back was waived/injured Sunday after playing in the Jets' preseason game Friday against the Giants, in which he ran five times for 13 yards. Richardson was also waived by the Titans on Aug. 19. He will need to reach an injury settlement with New York to have a chance to play in 2026.