The Bulls remained winless in five road games this season.

Portland limited Chicago to 13 points in the opening period while opening a 21-point advantage. The Bulls did not challenge the rest of the game and finished off a struggling performance by scoring just five points during the first half of the fourth quarter.

Roy scored 20 points, Joel Przybilla had 14 and Greg Oden, in the sixth game of his NBA career, had 11 points and 10 rebounds.

Portland shot 56 percent from the floor, made 25 of 31 foul shots and out-rebounded the Bulls by 17.

Chicago got 13 points from Andres Nocioni.