DURHAM, N.C. -- Top-ranked Duke will have to be content to win with defense and an inside game for now.
The Blue Devils, struggling from the outside again, got 20 points from Carlos Boozer and forced 27 turnovers to beat Portland 104-62 Sunday night.
Boozer, 11-for-11 from the field in a 33-point win over the Pilots last season, made 8-of-14 this time and grabbed 13 rebounds as Duke (4-0) had six players score in double figures and won its 20th straight home opener.
Dahntay Jones added 17 points, while freshman Daniel Ewing had 15.
Casey Frandsen led Portland (1-2) with 28 points.
Duke shot 39 percent from 3-point range a season ago, but came in with the Pilots hitting 33 percent after three wins in the Maui Invitational.
That number took a hit Sunday night as Duke missed 19 of its first 20 3-pointers and finished 5-for-25.
The Blue Devils missed their first nine beyond the arc and finished the first half 1-for-15 as the Pilots, who lost in overtime to Idaho State four days ago, remained in the game.
While Duke's offense struggled in steamy Cameron Indoor Stadium, its defense was super, forcing Portland into six straight turnovers to start the game and 13 for the opening 20 minutes to build a 16-point lead.
The outside shooting and overall flow of the offense was so poor, coach Mike Krzyzewski dug deep into his bench to play Matt Christensen and walk-on Mark Causey to try to find a spark.
It worked as Duke went on a 10-0 run.
Mike Dunleavy made a follow shot and hit the team's first 3-pointer with 5:06 left in the half, and Jones added a pair of driving layups for a 31-14 lead.
Dunleavy turned the ball over on Duke's first possession of the second half as Krzyzewski put his hands over his face, but a 20-2 run minutes later helped put the game out of reach.
Boozer sparked the surge with a three-point play, a layup, a bank shot and a free throw as the Blue Devils went away from jumpers to a running game that produced some easy buckets.
A pair of steals by Jason Williams led to a fastbreak layup by the junior guard and a dunk by Dunleavy as Duke went up by 31 with 14:43 left and cruised from there.
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