Mogapi is the second player to leave Celtic this week after they parted ways with Malawian striker Hellings Mhango, who has signed a pre-contract with Bidvest Wits.
The 27-year-old defender has been linked with a move to Maritzburg United.
“He has been released,” says a high-ranking official at Celtic. “He is going to Maritzburg United. I think it’s better you call them.”