However, he'll maintain his college eligibility.
The 6-foot-4 guard averaged 15.7 points and 7.3 boards while shooting 51.4% from the field - including 39% from deep - over 20 appearances in 2020-21. He also finished sixth in the NCAA in assists (7.2 per game) and earned All-MAC first-team honors.
Preston turned heads with a standout early-season performance against eighth-ranked Illinois, posting 31 points, eight assists, and six boards.
He later guided the 13th-seeded Bobcats to an upset victory over defending national champs Virginia in the first round of the NCAA Tournament.