Jabari Parker had a workout at Simeon on Tuesday that was attended by representatives from Kansas, Duke, North Carolina, Texas A&M, DePaul, Ohio State and Iliinois.
One source told Evan Daniels of Scout.com that it was the most coaches he had ever seen watch a high school workout.
Mike Krzyzewski was one of the coaches in attendance.
Parker is widely considered the top player of the class of 2013.