The 49ers signed Dinkins to the practice squad Monday, per the NFL's transaction log.
The 49ers waived Dinkins during Sunday's cutdown day. The tight end cleared waivers and has rejoined the 49ers, who signed him to a three-year contract Aug. 22. Dinkins has a good chance to be elevated to the active roster if George Kittle (Achilles), Jake Tonges, Luke Farrell or Brayden Willis (concussion) misses time due to injury.