Aiden Markram, Lungi Ngidi and Keshav Maharaj will be the big-name Proteas in the SA20 auction after all six teams announced their pre-signed and retained players ahead of season 4.
MI Cape Town will kick off their SA20 title defence with a home game against Durban's Super Giants at Newlands on 26 December after the league announced the fixtures for the fourth season.
At least 72 player slots will be up for grabs and an increased salary cap for the six franchises in the SA20 auction that will take place on 9 September in Johannesburg.
MI Cape Town head coach Robin Peterson is pleased to see some stability in the team this season, after a dominant display over Pretoria Capitals to claim an unbeaten run at Newlands in the SA20.
MI Cape Town underlined their status as the Betway SA20 table-toppers for Season 3 with a comprehensive bonus-point victory over the Pretoria Capitals to close out a perfect record at Newlands on Sunday.
In a thrilling SA20 encounter on Friday night, MI Cape Town triumphed over Pretoria Capitals by 27 runs at Centurion in a match dominated by power-hitting.