The Dolphins signed Core to their practice squad Monday, Aaron Wilson of Sportstalk 790 Houston reports.
Core tried out with the 49ers a few weeks ago and now he'll have the chance to be on a practice roster, though it remains to be seen if he'll have the opportunity to play an NFL snap before the current season comes to a close. He hasn't played in the league since 2019, when he registered three catches for 28 yards while playing 16 games for the Giants.