This was expected. Even before Jaren Jackson set foot in East Lansing — he was always a one-and-done candidate.
Jackson has made the expected official.
Jackson will be drafted in the top five come June, maybe as high as third. He is a prototypical modern NBA big man — he can score inside or knock down the three ball, defensively protect the rim or switch onto guys on the perimeter. He could be a real impact player in the NBA.