On February 12, 2013, in a game against the Florida Gators, Noel tore the ACL in his left knee after blocking a Florida lay-up, forcing him to sit out the remainder of the season. Before his injury, it was projected that he would be the 1st overall pick in the 2013 NBA draft. Despite his injury, Noel decided to declare for the 2013 draft on April 15, 2013.