The Blue Devils forward was knocked out of the NCAA Tournament with the same injury last season.
Everything has gone right for No. 1 Duke this season, as they moved to 15-0 with an easy win over Clemson on Tuesday.
However, they may soon be facing their first real batch of adversity, as they could be without senior PF Ryan Kelly when they travel to play NC State on Saturday.
Kelly was injured on Tuesday, hurting the same ankle that kept him out of the NCAA Tournament last season, where Duke was beat by Lehigh in the first round in one of the more stunning upsets in recent memory:
RT @laurakeeley Ryan Kelly hurt his foot, same one he sprained over Xmas (and same as last year). Will have CAT scan, X-ray tomorrow— Jeff Eisenberg (@JeffEisenberg) January 9, 2013
Kelly's ability to stretch the floor as a big man opens up the floor for his teammates and he's been of Duke's steadiest players this year. He's averaging 13 points, 5 rebounds and 2 blocks on 47/50/79 shooting.
Kelly is averaging 13.5 points, 5.4 rebounds and 1.6 assists per game for the Blue Devils this season.