A short career full of injuries at Southern Cal ended earlier this year and Tatum was left trying to find a new home.
Earlier in the week Tatum was in Miami trying to convince the coaches to offer him a scholarship. His efforts seemed to have fallen short.
"I don't know who broke that story," head coach Randy Shannon said. "Josh Tatum is not on this team. Josh Tatum won't be on this team, not today, not tomorrow, or next year. All I know is he was released by USC."