Jaren Jackson, the Big Ten defensive player of the year as a freshman for Michigan State, is leaving early for the NBA.

Jackson was also the Big Ten freshman of the year, joining former Ohio State star Greg Oden as the only players in conference history to pull off the feat. Coach Tom Izzo expected Jackson to be a one-and-done player.

“It was a difficult decision for him, which is kind of neat,” Izzo told The Associated Press.