Nicholas also grabbed 12 rebounds for a double-double. Rodgers was 4 of 5 from the field.
Portland led 28-27 at halftime in a game with 17 lead changes. Bradley had another chance to win the game, but Will Egolf missed a 3-pointer at the buzzer.
Portland (7-7) shot 44 percent from the field for the game, while Bradley (8-4) shot 31.5 percent. Portland had 42 rebounds, while Bradley had 31.