Missouri shooting guard Sebastian Mack plans to enter the NCAA transfer portal, On3 has learned. He spent one year with the Tigers.

In 18 games last year, Mack put up seven points per game, 1.3 rebounds per game, 0.6 assists per game, shot 40.7% from the floor and 27.3% from three-point range. Mack spent two years at UCLA before transferring to Missouri for the 2025-26 season.

As a member of the Class of 2023, Mack was a four-star recruit out of Chicago (Ill.) Coronado (Nev.), according to the Rivals Industry Ranking. He was the No. 2 overall prospect in Nevada, the No. 15 shooting guard in the class and the No. 61 overall prospect in the class.

To keep up with the latest players on the move, check out On3’s Transfer Portal wire. The On3 Transfer Portal Instagram account and Twitter account are excellent resources to stay up to date with the latest moves. Check it out!

Mack was not the only Missouri player who plans to enter the portal as of late. Fellow guard Anthony Robinson II is also in.

In 33 games this season, Robinson put up 8.9 points per game, 3.1 rebounds per game, three assists per game, shot 41% from the floor and 31.4% from three-point range. They were above his career averages through his collegiate tenure.

As a member of the Class of 2023, Robinson was a three-star recruit out of Tallahassee (Fla.) Florida State University School, according to the Rivals Industry Ranking. He was the No. 14 overall prospect in the state, the No. 22 point guard in the class and the No. 144 overall prospect in the class.