CHICAGO (Interstat) — The Duke Blue Devils stayed perfect on the season, defeating the Arkansas Razorbacks 80-71 on Thursday at United Center. Duke built a six-point halftime lead and maintained control throughout the second half to secure the win in front of a crowd of 10,766. The victory improves Duke to 8-0, while Arkansas falls to 5-2. The Blue Devils were installed as a 10.5-point pregame favorite.