Sebastian Mack plans to enter NCAA Transfer Portal
Mack becomes the second Tiger to announce his intention to transfer from Missouri.
SOUTH BEND, IN - DECEMBER 2: Missouri guard Sebastian Mack #12 dribbles the ball while being pressured by Notre Dame guard Braeden Shrewsberry #11 during a game between Missouri and Notre Dame at The Joyce Center at Purcell Pavilion on December 2, 2025 in South Bend, Indiana. (Photo by Michael Miller/ISI Photos/ISI Photos via Getty Images) | ISI Photos via Getty Images The transfer portal hasn’t opened yet, that date is saved for after the National Championship game. But that doesn’t stop players and agents from announcing their intention to enter the portal when it opens.
After Anthony Robinson II announced his intention to enter the trasfer portal, former UCLA transfer Sebastian Mack made his choice clear today. NEW: Missouri guard Sebastian Mack plans to enter the NCAA transfer portal, @JoeTipton reports. https://t.
co/MwYl3UYz5a pic. twitter. com/Ldm8YV6tjB — Transfer Portal (@TransferPortal) April 1, 2026 A native of Chicago, Mack began the season as a starter, but the fit within the rotation seemed to waver as the non-conference season wore on.
After starting the first 9 games of the season, Mack saw action in only 5 games once SEC conference play started. And only in the 26 point loss to Alabama did he see the floor for more than 10 minutes. In all he played in 18 games, and averaged 12 minutes per game and scoring 7.