Duke's Grayson Allen to return for junior season Posted Apr 6, 2016 Duke's Grayson Allen will return for his junior season, making the Blue Devils the clear-cut preseason favorites for next season. Allen decided not to take advantage of the new rule that allows players to declare for the NBA Draft and attend the NBA combine but return to school as long as they don't sign with an agent. Allen averaged 21.6 points per game last season. (ESPN.com)