After a summer that saw him scrimmage against—and wow—some of the best basketball players in the world, Cooper Flagg is now impressing against some of the best college players in the nation as a freshman for Duke.

Duke phenom Cooper Flagg has taken college basketball by storm, and now he's earned a bold declaration from legendary coach Mike Krzyzewski, who just called him "the best player in the country.

The No. 3 Duke Blue Devils have been red-hot since starting the season 3-2, winning 11 straight games and 13 of their last 14. A key reason for their success is